| Journal Articles: 525 results |
|
|
Magnetized Water: Science or Fraud? L. Lahuerta Zamora, G. M. Antón-Fos, P. A. Alemán López, and R. V. Martin Algarra
Commercial water magnetizers provide a unique opportunity to help university and secondary students develop appropriate skepticism against extraordinary claims and use testing as the basis for their scientific evaluation.
Lahuerta Zamora, L.; Antón-Fos, G. M.; Alemán López, P. A.; Martin Algarra, R. V. J. Chem. Educ. 2008, 85, 1416.
Aqueous Solution Chemistry |
Magnetic Properties |
pH |
Titration / Volumetric Analysis |
Water / Water Chemistry
|
New Observations on the Copper-to-Silver-to-Gold Demonstration Dorin Bejan, Jeff Hastie, and Nigel J. Bunce
This analysis of the classic copper-to-silver-to-gold demonstration describes the deposition of zinc in the form of the silver-colored alloy ?-brass, the evolution of hydrogen at the copper cathode, and the behavior of the associated electrochemical cell.
Bejan, Dorin; Hastie, Jeff; Bunce, Nigel J. J. Chem. Educ. 2008, 85, 1381.
Electrochemistry |
Electrolytic / Galvanic Cells / Potentials |
Oxidation State |
Oxidation / Reduction
|
Appreciating Oxygen Hilton M. Weiss
Photosynthetic flora and microfauna utilize light from the sun to convert carbon dioxide and water into carbohydrates and oxygen. While these carbohydrates and their derivative hydrocarbons are generally considered to be fuels, it is the thermodynamically energetic oxygen molecule that traps, stores, and provides almost all of the energy that powers life on earth.
Weiss, Hilton M. J. Chem. Educ. 2008, 85, 1218.
Bioenergetics |
Metabolism |
Oxidation / Reduction |
Photosynthesis |
Thermodynamics
|
Construction of a Polyaniline Nanofiber Gas Sensor Shabnam Virji, Bruce H. Weiller, Jiaxing Huang, Richard Blair, Heather Shepherd, Tanya Faltens, Philip C. Haussmann, Richard B. Kaner, and Sarah H. Tolbert
The objectives of this lab are to synthesize different diameter polyaniline nanofibers and compare them as sensor materials. Its advantages include simplicity and low cost, making it suitable for both high school and college students, particularly in departments with modest means.
Virji, Shabnam; Weiller, Bruce H.; Huang, Jiaxing; Blair, Richard; Shepherd, Heather; Faltens, Tanya; Haussmann, Philip C.; Kaner, Richard B.; Tolbert, Sarah H. J. Chem. Educ. 2008, 85, 1102.
Acids / Bases |
Aromatic Compounds |
Conductivity |
Hydrogen Bonding |
Oxidation / Reduction |
Oxidation State |
pH |
Polymerization |
Synthesis
|
Preparation of Conducting Polymers by Electrochemical Methods and Demonstration of a Polymer Battery Hiromasa Goto, Hiroyuki Yoneyama, Fumihiro Togashi, Reina Ohta, Akitsu Tsujimoto, Eiji Kita, and Ken-ichi Ohshima
The electrochemical polymerization of aniline and pyrrole, and demonstrations of electrochromism and the polymer battery effect, are presented as demonstrations suitable for high school and introductory chemistry at the university level.
Goto, Hiromasa; Yoneyama, Hiroyuki; Togashi, Fumihiro; Ohta, Reina; Tsujimoto, Akitsu; Kita, Eiji; Ohshima, Ken-ichi. J. Chem. Educ. 2008, 85, 1067.
Aromatic Compounds |
Conductivity |
Electrochemistry |
Materials Science |
Oxidation / Reduction |
Polymerization
|
Prussian Blue: Artists' Pigment and Chemists' Sponge Mike Ware
The variable composition of Prussian blue tantalized chemists until investigations by X-ray crystallography in the late 20th century explained its many properties and uses.
Ware, Mike. J. Chem. Educ. 2008, 85, 612.
Applications of Chemistry |
Coordination Compounds |
Dyes / Pigments |
Electrochemistry |
Oxidation / Reduction |
Photochemistry |
Toxicology
|
Metal Electrodeposition on an Integrated, Screen-Printed Electrode Assembly Yieu Chyan and Oliver Chyan
Screen-printed, carbon strip electrodes illustrate the essential concepts of electrochemistry and electrodeposition; their light weight facilitates sensitive measurements of electrodeposited metal, allowing for the exploration of Faraday's law and electrodeposition efficiency.
Chyan, Yieu; Chyan, Oliver. J. Chem. Educ. 2008, 85, 565.
Electrochemistry |
Metals |
Oxidation / Reduction |
Quantitative Analysis
|
Yet Another Variation on the Electrolysis of Water at Iron Nails Mark T. Stauffer and Justin P. Fox
Describes a variation on the electrolysis of water with iron nails in which a sharp contrast in the colors produced effectively demonstrates electrolysis and the diffusion of oxidized and reduced species from the electrodes.
Stauffer, Mark T.; Fox, Justin P. J. Chem. Educ. 2008, 85, 523.
Acids / Bases |
Electrochemistry |
Oxidation / Reduction |
Stoichiometry |
Water / Water Chemistry |
Electrolytic / Galvanic Cells / Potentials
|
In Partial Defense of Calculating Titration Curves Stephen J. Hawkes
Calculating a titration curve is an unnecessarily complicated method of explaining how a buffer works, and equilibrium calculations are grossly over-emphasized in chemistry teaching.
Hawkes, Stephen J. J. Chem. Educ. 2008, 85, 499.
Titration / Volumetric Analysis
|
In Partial Defense of Calculating Titration Curves Daniel C. Harris
There are more important subjects than calculating titration curves for a student whose only formal exposure to analytical chemistry will be an introductory course and whose primary interest is likely to be outside of chemistry (such as the life sciences).
Harris, Daniel C. J. Chem. Educ. 2008, 85, 498.
Titration / Volumetric Analysis |
Quantitative Analysis
|
Discsussion: Should Students Calculate Titration Curves? Stephen J. Hawkes
Learning to perform equilibrium calculations is an example of the principle that students who can answer numerical questions do not necessarily understand their chemistry.
Hawkes, Stephen J. J. Chem. Educ. 2008, 85, 498.
Titration / Volumetric Analysis |
Quantitative Analysis
|
Connecting Solubility, Equilibrium, and Periodicity in a Green, Inquiry Experiment for the General Chemistry Laboratory Kristen L. Cacciatore, Jose Amado, Jason J. Evans, and Hannah Sevian
Presents a novel first-year chemistry experiment that asks students to replicate procedures described in sample lab reports that lack essential information. This structure is designed to promote students' experimental design and data analysis skills as well as their understanding of the importance and essential qualities of written and verbal communication between scientists.
Cacciatore, Kristen L.; Amado, Jose; Evans, Jason J.; Sevian, Hannah. J. Chem. Educ. 2008, 85, 251.
Equilibrium |
Green Chemistry |
Periodicity / Periodic Table |
Solutions / Solvents |
Stoichiometry |
Titration / Volumetric Analysis
|
The Role of Water Chemistry in Marine Aquarium Design: A Model System for a General Chemistry Class Jeffrey J. Keaffaber, Ramiro Palma, and Kathryn R. Williams
Water chemistry is central to aquarium design, and it provides many potential applications for discussion in undergraduate chemistry and engineering courses. This article uses a hypothetical tank to house ocean sunfish as a model to show students the calculations and other considerations that are needed when designing a marine aquarium.
Keaffaber, Jeffrey J.; Palma, Ramiro; Williams, Kathryn R. J. Chem. Educ. 2008, 85, 225.
Acids / Bases |
Aqueous Solution Chemistry |
Consumer Chemistry |
Oxidation / Reduction |
Stoichiometry |
Water / Water Chemistry
|
The Use of Conjugate Charts in Transfer Reactions: A Unified Approach Michael I. Allnutt
Redox reactions are discussed in terms of the relative strengths of the oxidant, the reductant, and their conjugates; a conjugate chart is a convenient and useful way of doing this. A similar chart for acids and bases that can be applied in the same manner is proposed.
Allnutt, Michael I. J. Chem. Educ. 2007, 84, 1659.
Acids / Bases |
Electrolytic / Galvanic Cells / Potentials |
Oxidation / Reduction |
Brønsted-Lowry Acids / Bases
|
Mercury Beating Heart: Modifications to the Classical Demonstration Metodija Najdoski, Valentin Mirceski, Vladimir M. Petruševski, and Sani Demiri
The classic mercury beating heart demonstration is modified with various electrolytes.
Najdoski, Metodija; Mirceski, Valentin; Petruševski, Vladimir M.; Demiri, Sani. J. Chem. Educ. 2007, 84, 1292.
Electrochemistry |
Oxidation / Reduction |
Surface Science
|
Exploring Faraday's Law of Electrolysis Using Zinc–Air Batteries with Current Regulative Diodes Masahiro Kamata and Miei Paku
Describes a new educational experiment using low-cost zincair batteries and current regulative diode arrays to quickly confirm Faraday's law of electrolysis.
Kamata, Masahiro; Paku, Miei. J. Chem. Educ. 2007, 84, 674.
Electrochemistry |
Electrolytic / Galvanic Cells / Potentials |
Laboratory Equipment / Apparatus |
Oxidation / Reduction
|
Flame Emission Spectrometry in General Chemistry Labs: Solubility Product (Ksp) of Potassium Hydrogen Phthalate Frazier W. Nyasulu, William Cusworth III, David Lindquist, and John Mackin
In this general chemistry laboratory, flame emission spectrometry is used to determine the potassium ion concentration in saturated solutions of potassium hydrogen phthalate. From these data the solubility products, the Gibbs free energies of solution, the standard enthalpy of solution, and the standard entropy of solution are calculated.
Nyasulu, Frazier W.; Cusworth, William, III; Lindquist, David; Mackin, John. J. Chem. Educ. 2007, 84, 456.
Acids / Bases |
Atomic Properties / Structure |
Spectroscopy |
Equilibrium |
Quantitative Analysis |
Thermodynamics |
Titration / Volumetric Analysis |
Solutions / Solvents |
Aqueous Solution Chemistry |
Atomic Spectroscopy
|
Introducing New Learning Tools into a Standard Classroom: A Multi-Tool Approach to Integrating Fuel-Cell Concepts into Introductory College Chemistry Matthew J. DAmato, Kenneth W. Lux, Kenneth A. Walz, Holly Walter Kerby, and Barbara Anderegg
Describes an approach to deliver the science and engineering concepts involved in fuel-cell technology to the introductory college chemistry classroom using traditional lectures, multimedia learning objects, and a lab activity to enhance student learning in a hands-on, interactive manner.
DAmato, Matthew J.; Lux, Kenneth W.; Walz, Kenneth A.; Kerby, Holly Walter; Anderegg, Barbara. J. Chem. Educ. 2007, 84, 248.
Electrochemistry |
Materials Science |
Nanotechnology |
Oxidation / Reduction |
Membranes
|
Titration of a Solid Acid Monitored By X-Ray Diffraction Keenan E. Dungey and Paul Epstein
Presents a solid-state laboratory in which students react fixed amounts of zirconium phosphate with increasing equivalents of NaOH(aq). From X-ray diffraction patterns, students calculate the interplanar spacings before and after the reaction. The spacings increase until the molar equivalence point is reached, indicating incorporation of the sodium ion into the crystal.
Dungey, Keenan E.; Epstein, Paul. J. Chem. Educ. 2007, 84, 122.
Acids / Bases |
Crystals / Crystallography |
Materials Science |
Solid State Chemistry |
X-ray Crystallography |
Titration / Volumetric Analysis
|
An Easy Way to Personalize Your Iron or Stainless Steel Items Ejaz ur Rehman
Describes a simple and useful method for permanently labeling metallic items by the application of alternating current through a mask.
Rehman, Ejaz ur. J. Chem. Educ. 2007, 84, 40.
Electrochemistry |
Oxidation / Reduction
|
A Kinetics Demonstration Involving a Green–Red–Green Color Change Resulting from a Large-Amplitude pH Oscillation Brian W. Pfennig and Richard T. Roberts
Describes an oxidationreduction, clock reaction involving iodate, sulfite, and thiosulfate that produces large swings in pH, causing a combination of acidbase indicators to effect greenredgreen color changes.
Pfennig, Brian W.; Roberts, Richard T. J. Chem. Educ. 2006, 83, 1804.
Acids / Bases |
Dyes / Pigments |
Kinetics |
Oxidation / Reduction
|
A Kool Reaction from the Fine Print Susan A. S. Hershberger and Arlyne M. Sarquis
Students investigate the reduction of artificial food dyes by citric acid-promoted oxidation of a metal in the form of fine or coarse steel wool. The artificial red and yellow food dyes present in drink mixes contain azo linkages (nitrogennitrogen double bonds) that are readily reduced to colorless products under mild reducing conditions.
Hershberger, Susan A. S.; Sarquis, Arlyne M. J. Chem. Educ. 2006, 83, 1792A.
Acids / Bases |
Consumer Chemistry |
Descriptive Chemistry |
Dyes / Pigments |
Food Science |
Oxidation / Reduction |
Reactions
|
Effectiveness of Conceptual Change-Oriented Teaching Strategy To Improve Students' Understanding of Galvanic Cells Ali Riza Özkaya, Musa Üce, Hakan Sariçayir, and Musa Sahin
This article presents efforts to develop a conceptual change-oriented strategy to teaching galvanic cells in electrochemistry. The objective is to assess the effectiveness of conceptual change-oriented instruction relative to conventional instruction using statistical comparisons.
Özkaya, Ali Riza; Üce, Musa; Sariçayir, Hakan; Sahin, Musa. J. Chem. Educ. 2006, 83, 1719.
Electrochemistry |
Equilibrium |
Oxidation / Reduction |
Undergraduate Research
|
Predicting Inorganic Reaction Products: A Critical Thinking Exercise in General Chemistry David G. DeWit
Describes a course module designed to afford practice in applying the principles encountered throughout the general chemistry sequence to understanding and predicting chemical reactivity and the products of simple inorganic reactions.
DeWit, David G. J. Chem. Educ. 2006, 83, 1625.
Acids / Bases |
Descriptive Chemistry |
Learning Theories |
Metals |
Nonmetals |
Oxidation / Reduction |
Periodicity / Periodic Table |
Reactions
|
Job's Analysis of the Range of the "Dalton Syringe Rocket" Natalie Barto, Brandon Henrie, and Ed Vitz
An apparatus for safely igniting fuel gas/oxygen mixtures in a syringe and measuring the distance that the syringe is propelled is presented. The distance (range) is analyzed by the method of continuous variation (Job's Method) to determine the stoichiometry of the reaction.
Barto, Natalie; Henrie, Brandon; Vitz, Ed. J. Chem. Educ. 2006, 83, 1505.
Gases |
Oxidation / Reduction |
Thermodynamics |
Stoichiometry
|
Enantioselective Reduction by Crude Plant Parts: Reduction of Benzofuran-2-yl Methyl Ketone with Carrot (Daucus carota) Bits Silvana Ravía, Daniela Gamenara, Valeria Schapiro, Ana Bellomo, Jorge Adum, Gustavo Seoane, and David Gonzalez
Presents the enantioselective reduction of a ketone by crude plant parts, using carrot (Daucus carota) as the reducing agent.
Ravía, Silvana; Gamenara, Daniela; Schapiro, Valeria; Bellomo, Ana; Adum, Jorge; Seoane, Gustavo; Gonzalez, David. J. Chem. Educ. 2006, 83, 1049.
Aldehydes / Ketones |
Biotechnology |
Catalysis |
Chromatography |
Green Chemistry |
Oxidation / Reduction |
Stereochemistry |
Separation Science
|
Complexometric Titration of Aluminum and Magnesium Ions in Commercial Antacids. An Experiment for General and Analytical Chemistry Laboratories Shui-Ping Yang and Ruei-Ying Tsai
A novel experiment for determining the total and individual aluminum and magnesium ion content in commercial antacids is described. This experiment is developed with three independent protocols based on complexometric direct and back titrations containing the concepts and usages of blocking, masking, buffer controls and metallic indicators.
Yang, Shui-Ping; Tsai, Ruei-Ying. J. Chem. Educ. 2006, 83, 906.
Aqueous Solution Chemistry |
Chemometrics |
Consumer Chemistry |
Medicinal Chemistry |
Quantitative Analysis |
Titration / Volumetric Analysis |
UV-Vis Spectroscopy
|
(Strept)Avidin–Biotin: Two Interrelated Experiments for the Introductory Chemistry Laboratory David E. Hansen, Dengda Tang, Jon A. Sanborn, and Mark D. Marshall
Describes a two-experiment sequence focusing on the noncovalent complex between the egg white protein avidin (or the similar protein streptavidin, which is expressed by the bacterium Streptomyces avidinii) and the essential cofactor biotin. The equilibrium constant for the binding of HABA to avidin is calculated from the data collected.
Hansen, David E.; Tang, Dengda; Sanborn, Jon A.; Marshall, Mark D. J. Chem. Educ. 2006, 83, 777.
Bioorganic Chemistry |
Computational Chemistry |
Equilibrium |
Titration / Volumetric Analysis
|
Intermolecular and Intramolecular Forces: A General Chemistry Laboratory Comparison of Hydrogen Bonding in Maleic and Fumaric Acids Frazier W. Nyasulu and John Macklin
This article presents a simple laboratory experiment that is designed to enhance students' understanding of inter- and intramolecular hydrogen bonding by demonstrating the comparative effect of these phenomena on some chemical and physical properties.
Nyasulu, Frazier W.; Macklin, John. J. Chem. Educ. 2006, 83, 770.
Acids / Bases |
Hydrogen Bonding |
Noncovalent Interactions |
Thermodynamics |
Titration / Volumetric Analysis
|
Sugar Dehydration without Sulfuric Acid Todd P. Silverstein
Offers additional solutions to the cracked watch glass problem associated with an earlier published dehydration of sugar demonstration.
Silverstein, Todd P. J. Chem. Educ. 2006, 83, 701.
Oxidation / Reduction |
Thermodynamics
|
Sugar Dehydration without Sulfuric Acid Edward F. Duhr, Allison S. Soult, John G. Maijub, and Fitzgerald B. Bramwell
The procedure for Sugar Dehydration without Sulfuric Acid: No More Choking Fumes in the Classroom! can lead to watch glass breakage and thereby a fire hazard.
Duhr, Edward F.; Soult, Allison S.; Maijub, John G.; Bramwell, Fitzgerald B. J. Chem. Educ. 2006, 83, 701.
Oxidation / Reduction |
Thermodynamics
|
Sugar Dehydration without Sulfuric Acid Edward F. Duhr, Allison S. Soult, John G. Maijub, and Fitzgerald B. Bramwell
The procedure for Sugar Dehydration without Sulfuric Acid: No More Choking Fumes in the Classroom! can lead to watch glass breakage and thereby a fire hazard.
Duhr, Edward F.; Soult, Allison S.; Maijub, John G.; Bramwell, Fitzgerald B. J. Chem. Educ. 2006, 83, 701.
Oxidation / Reduction |
Thermodynamics
|
New Highlights on Analyzing First-Order Kinetic Data of the Peroxodisulfate–Iodide System at Different Temperatures J. Yperman and W. J. Guedens
A pseudo-first order kinetic experiment examining the peroxodisulfateiodide system is executed at different temperatures, making it possible to calculate the activation energy of this reaction.
Yperman, J.; Guedens, W. J. J. Chem. Educ. 2006, 83, 641.
Kinetics |
Laboratory Computing / Interfacing |
Oxidation / Reduction |
Rate Law |
Thermodynamics
|
The Great Wakonse Earthquake of 2003: A Short, Problem-Based Introduction to the Titration Concept Brian P. Coppola, Amy C. Gottfried, Robyn L. Gdula, Alan L. Kiste, and Nathan W. Ockwig
This activity introduces nonscience adult learners to the concept of titration from real-world instructions about earthquake water safety found in a California phone book.
Coppola, Brian P.; Gottfried, Amy C.; Gdula, Robyn L.; Kiste, Alan L.; Ockwig, Nathan W. J. Chem. Educ. 2006, 83, 600.
Acids / Bases |
Applications of Chemistry |
Aqueous Solution Chemistry |
Qualitative Analysis |
Titration / Volumetric Analysis |
Water / Water Chemistry
|
Chemical Characterization of Activated Carbon Fibers and Activated Carbons J. M. Valente Nabais and P. J. M. Carrott
The main objective of this laboratory is the chemical characterization of carbon materials, mainly activated carbons and activated carbon fibers, using several methods to obtain the information without using expensive instruments.
Valente Nabais, J. M.; Carrott, P. J. M. J. Chem. Educ. 2006, 83, 436.
Acids / Bases |
Aqueous Solution Chemistry |
Materials Science |
Surface Science |
Titration / Volumetric Analysis
|
Steel Wool and Oxygen: How Constant Should a Rate Constant Be? Michiel Vogelezang
In the article Steel Wool and Oxygen: A Look at Kinetics, James Gordon and Katherine Chancey describe an experiment about the kinetics between iron and oxygen. Like all good experiments this one is easy to carry out and produces good results. However, the experiment can even have a greater impact with only a small addition.
Vogelezang, Michiel. J. Chem. Educ. 2006, 83, 214.
Rate Law |
Kinetics |
Oxidation / Reduction
|
Laboratory Experiments on the Electrochemical Remediation of the Environment. Part 7: Microscale Production of Ozone Jorge G. Ibanez, Rodrigo Mayen-Mondragon, M. T. Moran-Moran, Alejandro Alatorre-Ordaz, Bruce Mattson, and Scot Eskestrand
Ozone, a powerful oxidizing and disinfecting agent, is produced electrochemically in the undergraduate laboratory with simple equipment and under very mild conditions. Tests are given to characterize it, to observe its action in simulated environmental applications, and to measure its rate of production.
Ibanez, Jorge G.; Mayen-Mondragon, Rodrigo; Moran-Moran, M. T.; Alatorre-Ordaz, Alejandro; Mattson, Bruce; Eskestrand, Scot. J. Chem. Educ. 2005, 82, 1546.
Aqueous Solution Chemistry |
Descriptive Chemistry |
Electrochemistry |
Electrolytic / Galvanic Cells / Potentials |
Laboratory Equipment / Apparatus |
Microscale Lab |
Oxidation / Reduction |
Reactions
|
Mass Relationships in a Chemical Reaction: Incorporating Additional Graphing Exercises into the Introductory Chemistry Laboratory Stephen DeMeo
The purpose of this article is to increase student involvement with graph construction specifically in the context of introductory laboratory activities that involve mass relationships between reacting substances and products. In this regard, five massmass plots derived from a synthesis of a binary compound from its elements are presented as well as a set of questions to focus learners on the significance of each plot. The benefit of providing learners with these types of graphing activities include the use of higher-order cognitive processes as well as the elucidation of fundamental chemical knowledge such as the law of the conservation of mass, the law of constant composition, limiting and excess reactants, and empirical formula.
DeMeo, Stephen. J. Chem. Educ. 2005, 82, 1219.
Stoichiometry |
Oxidation / Reduction |
Reactions |
Quantitative Analysis
|
Kinetics of Alcohol Dehydrogenase-Catalyzed Oxidation of Ethanol Followed by Visible Spectroscopy Kestutis Bendinskas, Christopher DiJiacomo, Allison Krill, and Ed Vitz
A two-week biochemistry experiment was introduced in the second-semester general chemistry laboratory to study the oxidation of ethanol in vitro in the presence of the enzyme alcohol dehydrogenase (ADH). This reaction should pique student interest because the same reaction also occurs in human bodies when alcoholic drinks are consumed. Procedures were developed to follow the biochemical reaction by visible spectroscopy and to avoid specialized equipment. The effect of substrate concentration on the rate of this enzymatic reaction was investigated during the first week. The effects of temperature, pH, the specificity of the enzyme to several substrates, and the enzyme's inhibition by heavy metals were explored during the second week.
Bendinskas, Kestutis; DiJiacomo, Christopher; Krill, Allison; Vitz, Ed. J. Chem. Educ. 2005, 82, 1068.
Enzymes |
Kinetics |
Oxidation / Reduction |
Reactions |
UV-Vis Spectroscopy |
Alcohols |
Biophysical Chemistry |
Food Science
|
Steel Wool and Oxygen: A Look at Kinetics James Gordon and Katherine Chancey
An experimental method is described to study the kinetics of the reaction of the iron in steel wool with molecular oxygen. A calculator-based data collection system is used with an oxygen gas sensor to determine the order of the reaction with respect to oxygen. Using the graphical method, students determine that the reaction follows first-order kinetics with respect to oxygen.
Gordon, James; Chancey, Katherine. J. Chem. Educ. 2005, 82, 1065.
Atmospheric Chemistry |
Gases |
Kinetics |
Oxidation / Reduction
|
Conceptual Considerations in Molecular Science Donald T. Sawyer
The undergraduate curriculum and associated textbooks include several significant misconceptions.
Sawyer, Donald T. J. Chem. Educ. 2005, 82, 985.
Catalysis |
Covalent Bonding |
Electrolytic / Galvanic Cells / Potentials |
Oxidation / Reduction |
Reactions |
Reactive Intermediates |
Thermodynamics |
Water / Water Chemistry
|
A Modified Demonstration of the Catalytic Decomposition of Hydrogen Peroxide Carlos Alexander Trujillo
A safer and cheaper version of the popular catalyzed decomposition of hydrogen peroxide demonstration commonly called the Elephants Toothpaste is presented. Hydrogen peroxide is decomposed in the presence of a surfactant by the enzyme catalase producing foam. Catalase has a higher activity compared with the traditional iodide and permits the use of diluted hydrogen peroxide solutions. The demonstration can be made with household products with similar amazing effects.
Trujillo, Carlos Alexander. J. Chem. Educ. 2005, 82, 855.
Catalysis |
Kinetics |
Oxidation / Reduction
|
A Closer Look at AcidBase Olfactory Titrations Kerry Neppel, Maria T. Oliver-Hoyo, Connie Queen, and Nicole Reed
This laboratory experiment uses the sense of smell to determine end points of acidbase titrations. Olfactory indicators include garlic, onions, and vanillin. Results show that garlic and vanillin gave the most accurate results when calculated NaOH molarities were compared to the standardized values. These olfactory indicators in acidbase titrations gave consistent results when tested by a diverse student population. The preparation times, cost, and safety issues are comparable to traditional titration experiments.
Neppel, Kerry; Oliver-Hoyo, Maria T.; Queen, Connie; Reed, Nicole. J. Chem. Educ. 2005, 82, 607.
Acids / Bases |
Quantitative Analysis |
Titration / Volumetric Analysis
|
Procedure for Decomposing a Redox Reaction into Half-Reactions Ilie Fishtik and Ladislav H. Berka
The principle of stoichiometric uniqueness provides a simple algorithm to check whether a simple redox reaction may be uniquely decomposed into half-reactions in a single way. For complex redox reactions the approach permits a complete enumeration of a finite and unique number of ways a redox reaction may be decomposed into half-reactions. Several examples are given.
Fishtik, Ilie; Berka, Ladislav H. J. Chem. Educ. 2005, 82, 553.
Stoichiometry |
Equilibrium |
Electrochemistry |
Oxidation / Reduction |
Reactions |
Thermodynamics
|
The Determination of the Percent of Oxygen in Air Using a Gas Pressure Sensor James Gordon and Katherine Chancey
A new detection method is applied to a classic experiment in which gaseous atmospheric oxygen in a test tube is reacted with the iron in steel wool to produce rust. A gas pressure sensor interfaced to a calculator-based data collection system was used to measure the percent of oxygen in the air as the reaction proceeded. The results from the calculator-based experiment were compared to the results from a more traditional water-measurement experiment. The average percent of oxygen obtained using the calculator system was 19.4 0.4%.
Gordon, James; Chancey, Katherine. J. Chem. Educ. 2005, 82, 286.
Atmospheric Chemistry |
Gases |
Oxidation / Reduction |
Reactions
|
A Methane Balloon Inflation Chamber Curtis J. Czerwinski and Tanya J. Cordes
While several lecture demonstrations are possible using methane-filled balloons, it is often inconvenient to prepare these balloons since the pressure from standard laboratory and lecture hall gas nozzles is too low. As a solution to this problem, a methane balloon inflation chamber, prepared from a translucent 3.5-gallon pail and an aspirator or house-vacuum, provides an inexpensive and convenient method for inflating balloons in laboratories or lecture halls. Prepared in this way, methane-filled balloons can be used to demonstrate the effects of vacuum, the lifting power of low-density gases, and the explosive combustion of methane.
Czerwinski, Curtis J.; Cordes, Tanya J. J. Chem. Educ. 2005, 82, 248.
Alkanes / Cycloalkanes |
Calorimetry / Thermochemistry |
Gases |
Oxidation / Reduction |
Reactions
|
A Laser-Pointer-Based Spectrometer for Endpoint Detection of EDTA Titrations Christopher E. Dahm, James W. Hall, and Brian E. Mattioni
A simple laser-pointer-based spectrometer has been developed for endpoint detection of EDTA titrations of magnesium and calcium. This spectrometer was built to decrease the uncertainty in determining the endpoint of titrations performed with a Calmagite indicator. With a photoresistor as the detector, and with the aid of a voltage-divider circuit, the quantity of light being absorbed can be followed with a simple pHvoltmeter. Students determine the endpoint by graphing the data and applying simple mathematics. BeerLambert studies with the spectrometer also show excellent agreement for a given set of solutions.
Dahm, Christopher E.; Hall, James W.; Mattioni, Brian E. J. Chem. Educ. 2004, 81, 1787.
Dyes / Pigments |
Laboratory Equipment / Apparatus |
Lasers |
Spectroscopy |
Titration / Volumetric Analysis
|
Copper Metal from Malachite circa 4000 B.C.E. Gordon T. Yee, Jeannine E. Eddleton, and Cris E. Johnson
The experiment starts with a naturally occurring ore, malachite, essentially pure Cu2CO3(OH)2, which is readily available at modest cost in bead form from jewelry stores. Using only a Bunsen burner, a porcelain crucible, and a charcoal briquette, the experiment demonstrates two steps in the ancient processing of copper ore: roasting and reduction. The product is a shiny copper metal bead that can then be hammered, polished, and shown to be electrically conductive.
Yee, Gordon T.; Eddleton, Jeannine E.; Johnson, Cris E. J. Chem. Educ. 2004, 81, 1777.
Metals |
Oxidation / Reduction |
Solids
|
Gravimetric Titrations: In Support of Weight Titration Techniques Richard W. Ramette
I write in support of the recommendations of Stephen Hawkes on gravimetric titrations. Weight titration techniques are, in my opinion, by far the best way to bring volumetric analysis into the 20th (let alone 21st) century.
Ramette, Richard W. J. Chem. Educ. 2004, 81, 1715.
Laboratory Equipment / Apparatus |
Titration / Volumetric Analysis
|
Gravimetric Titrations: Save Time, Expense, and Error by Using Weight Burets Stephen J. Hawkes
Two papers have shown the superiority of a cheap plastic squeeze bottle used as a weight buret over an expensive volumetric buret. These papers were published at a time, now past, when precise weighing was inconvenient.
Hawkes, Stephen J. J. Chem. Educ. 2004, 81, 1715.
Laboratory Equipment / Apparatus |
Titration / Volumetric Analysis
|
Using Organic Light-Emitting Electrochemical Thin-Film Devices To Teach Materials Science Hannah Sevian, Sean Müller, Hartmut Rudmann, and Michael F. Rubner
Light-emitting thin films provide an excellent opportunity to learn about principles of electrochemistry, spectroscopy, microscopic structure of the solid state, basic circuits, and engineering design. There is currently strong interest in academic and industrial engineering research centering on developing organic light-emitting devices for applications in flat panel displays. In this educational module, designed for high school or introductory undergraduate courses, students learn how to make a ruthenium-based thin-film device. In the process, they learn about the solid-state electrochemistry at work in the film, as well as the electroluminescence that results when current passes through the device.
Sevian, Hannah; Müller, Sean; Rudmann, Hartmut; Rubner, Michael F. J. Chem. Educ. 2004, 81, 1620.
Electrochemistry |
Photochemistry |
Materials Science |
Oxidation / Reduction |
Solid State Chemistry
|
Quantitative Determination of Citric and Ascorbic Acid in Powdered Drink Mixes: A High School or General Chemistry Experiment Samuella B. Sigmann and Dale E. Wheeler
This article provides a method to quantitatively determine the amount of both citric and ascorbic acid in a given sample of a powdered drink mix. The total moles of acid in the sample are determined by titration with sodium hydroxide. Moles of ascorbic acid are determined by titration with potassium iodate. Moles of citric acid are determined by difference.
Sigmann, Samuella B.; Wheeler, Dale E. J. Chem. Educ. 2004, 81, 1479.
Acids / Bases |
Aqueous Solution Chemistry |
Consumer Chemistry |
Food Science |
Quantitative Analysis |
Titration / Volumetric Analysis
|
Old Nassau Demonstration with Wilkinson Modification Lawrence E. Wilkinson
A modification of the Old Nassau Reaction demonstration is presented, wherein a 0.025 M silver nitrate solution is used in place of the mercury(II) chloride solution employed in the original demonstration.
Wilkinson, Lawrence E. J. Chem. Educ. 2004, 81, 1474.
Aqueous Solution Chemistry |
Kinetics |
Oxidation / Reduction |
Reactions
|
A Small-Scale and Low-Cost Apparatus for the Electrolysis of Water Per-Odd Eggen and Lise Kvittingen
This article describes how to construct two simple, inexpensive, and illustrative apparatuses using disposable polyethene pipets and floral wire for electrolysis of water. These apparatuses suit various grades and curricula.
Eggen, Per-Odd; Kvittingen, Lise. J. Chem. Educ. 2004, 81, 1337.
Laboratory Equipment / Apparatus |
Oxidation / Reduction |
Electrochemistry
|
Mass Spectrometry for the Masses Jared D. Persinger, Geoffrey C. Hoops, and Michael J. Samide
In this article, we describe an experiment for an introductory chemistry course that incorporates the use of mass spectrometry for sample analysis. Several different air samples are collected that represent various chemical processes, and the composition of the air sample is predicted on the basis of known chemical principles. A gas chromatograph-mass spectrometer is used to analyze these samples, and the relative quantities of nitrogen, oxygen, carbon dioxide, water, and argon are calculated. On the basis of the data, the hypothesized sample composition is validated.
Persinger, Jared D.; Hoops, Geoffrey C.; Samide, Michael J. J. Chem. Educ. 2004, 81, 1169.
Mass Spectrometry |
Atmospheric Chemistry |
Green Chemistry |
Nonmajor Courses |
Oxidation / Reduction |
Photosynthesis |
Gases
|
Spectacular Pseudo-Exfoliation of an Exfoliated–Compressed Graphite M. Comet, L. Schreyeck, S. Verdan, G. Burato, and H. Fuzellier
This kind of reaction has been called pseudo-exfoliation of carbonaceous material. This demonstration spectacularly illustrates the layered nature of graphite.
Comet, M.; Schreyeck, L.; Verdan, S.; Burato, G.; Fuzellier, H. J. Chem. Educ. 2004, 81, 819.
Materials Science |
Oxidation / Reduction |
Solid State Chemistry
|
The Chemistry of Photographic Color Dye Formation Bruce E. Kahn
A laboratory activity is described where black and white photographs are converted to color images in a variety of ways.
Kahn, Bruce E. J. Chem. Educ. 2004, 81, 694.
Photochemistry |
Dyes / Pigments |
Acids / Bases |
Consumer Chemistry |
Industrial Chemistry |
Oxidation / Reduction
|
Isolation of Copper from a 5–Cent Coin. An Example of Electrorefining Steven G. Sogo
The United States 5cent coin, commonly known as a "nickel", is made of an alloy containing 75% copper and 25% nickel. The experiment is a visually appealing illustration of the process of electrorefining using selective reduction.
Sogo, Steven G. J. Chem. Educ. 2004, 81, 530.
Electrochemistry |
Oxidation / Reduction |
Metals
|
Caveman Chemistry: 28 Projects, from the Creation of Fire to the Production of Plastics (Kevin M. Dunn) Michael S. Matthews
In Caveman Chemistry, Kevin Dunn presents a historically oriented hands-on introduction to chemistry and chemical technology that is tremendously entertaining.
Matthews, Michael S. J. Chem. Educ. 2004, 81, 490.
Stoichiometry |
Oxidation / Reduction |
Applications of Chemistry |
Nomenclature / Units / Symbols |
Natural Products |
Nonmajor Courses
|
A Reaction That Takes Place in Beakers but Not in Conical Flasks: A Catalysis-Related Demonstration Colin White
A striking demonstration emphasizing that substances which promote reactions are not catalysts if they are consumed in the process. The demonstration is based on the iron(II) induced oxidation of iodide by chromium(VI).
White, Colin. J. Chem. Educ. 2004, 81, 364.
Catalysis |
Oxidation / Reduction |
Reactions
|
Well Wishes. A Case on Septic Systems and Well Water Requiring In-Depth Analysis and Including Optional Laboratory Experiments Mary M. Walczak and Juliette M. Lantz
This paper describes the use of a case study to teach introductory chemistry students the chemical principles of solution concentration (especially ppm) and dilution, aqueous redox reactions, and stoichiometric conversions between different solution species.
Walczak, Mary M.; Lantz, Juliette M. J. Chem. Educ. 2004, 81, 218.
Consumer Chemistry |
Water / Water Chemistry |
Solutions / Solvents |
Oxidation / Reduction |
Stoichiometry
|
Choice of Citrus Fruit E. J. Behrman and C. F. Behrman
Sowa and Kondo have published an experiment in which students are asked to imagine that each is an 18th century sea captain about to take a long voyage. Which citrus fruit would the student take? The experiment is designed to measure the vitamin C concentrations in lemons, limes, oranges, and grapefruit. But there is another dimension to the sea captains problem, which suggests a very practical extension of the experiment. Which fruit keeps best over a long period?
Behrman, E. J.; Behrman, C. F. J. Chem. Educ. 2004, 81, 196.
Titration / Volumetric Analysis
|
Comment on the Hazards of Peroxide Decomposition J. C. Jones
The issue under discussionthe presence in ether of peroxides and their explosive decompositionis an important one, and the correspondence referred to is focused on laboratory safety. I believe however that an interesting point of pedagogic value can be gleaned from it.
Jones, J. C. J. Chem. Educ. 2004, 81, 193.
Ethers |
Oxidation / Reduction
|
Photogalvanic Cells for Classroom Investigations: A Contribution for Ongoing Curriculum Modernization Claudia Bohrmann-Linde and Michael W. Tausch
Laboratory experiments examining the fundamental processes in the conversion of light into electrical energy using photogalvanic cells have been developed. These simple cells are suitable for classroom investigations examining the operating principles of photogalvanic cells and the influence of different parameters on their efficiency.
Bohrmann-Linde, Claudia; Tausch, Michael W. J. Chem. Educ. 2003, 80, 1471.
Electrochemistry |
Atomic Properties / Structure |
Photochemistry |
Oxidation / Reduction |
Electrolytic / Galvanic Cells / Potentials
|
Canadian Tire Money: An Analogy for Use When Discussing Weak Acid–Strong Base Titrations Arthur M. Last
In this article, use is made of the practice of one well-known Canadian retail chain in returning to its customers a small percentage of an item's purchase price in the form of imitation bank notes that can subsequently be spent in the chain's stores. An analogy is drawn between this practice and the determination of the pKa of a weak acid by titrating it with a strong base, taking into account the hydrolysis of the anion produced.
Last, Arthur M. J. Chem. Educ. 2003, 80, 1403.
Acids / Bases |
Titration / Volumetric Analysis
|
Comparing the Titrations of Mixed-Acid Solutions Using Dropwise and Constant-Flow Techniques Paul Charlesworth, Matthew J. Seguin, and David J. Chesney
Real-time titration techniques are found to result in significantly decreased analysis times while maintaining a low experimental error.
Charlesworth, Paul; Seguin, Matthew J.; Chesney, David J. J. Chem. Educ. 2003, 80, 1311.
Acids / Bases |
Laboratory Computing / Interfacing |
Quantitative Analysis |
Titration / Volumetric Analysis |
Laboratory Equipment / Apparatus |
Laboratory Management
|
Lithium Batteries: A Practical Application of Chemical Principles Richard S. Treptow
In recent years batteries have emerged in the marketplace that take advantage of the unique properties of lithium. Lithium metal is an attractive choice to serve as a battery anode because it is easily oxidized and it produces an exceptionally high amount of electrical charge per unit-weight.
Treptow, Richard S. J. Chem. Educ. 2003, 80, 1015.
Consumer Chemistry |
Electrochemistry |
Oxidation / Reduction |
Electrolytic / Galvanic Cells / Potentials |
Applications of Chemistry
|
Titrimetric Determination of Carbon Dioxide in a Heterogeneous Sample ("Pop Rocks") Craig M. Davis and Matthew C. Mauck
Procedure for determining the carbon dioxide content of Pop Rocks candy through titrimetry.
Davis, Craig M.; Mauck, Matthew C. J. Chem. Educ. 2003, 80, 552.
Acids / Bases |
Quantitative Analysis |
Aqueous Solution Chemistry |
Consumer Chemistry |
Titration / Volumetric Analysis |
Applications of Chemistry
|
Sailing on the "C": A Vitamin Titration with a Twist S. Sowa and A. E. Kondo
Guided inquiry experiment where students determine what measurements they need, design and carry out their own procedures, develop their own data and analyses, and make conclusions based on their results.
Sowa, S.; Kondo, A. E. J. Chem. Educ. 2003, 80, 550.
Titration / Volumetric Analysis |
Qualitative Analysis |
Oxidation / Reduction |
Applications of Chemistry
|
The Chemical Adventures of Sherlock Holmes: The Blackwater Escape Thomas G. Waddell and Thomas R. Rybolt
A chemical mystery involving electrochemistry and featuring Sherlock Holmes and Dr. Watson.
Waddell, Thomas G.; Rybolt, Thomas R. J. Chem. Educ. 2003, 80, 401.
Electrochemistry |
Materials Science |
Qualitative Analysis |
Oxidation / Reduction |
Enrichment / Review Materials |
Applications of Chemistry
|
Incomplete Combustion with Candle Flames: A Guided-Inquiry Experiment in the First-Year Chemistry Lab Joseph MacNeil and Lisa Volaric
Investigating a burning candle as an introduction to incomplete combustion, thermodynamics, kinetics, and gas chromatography.
MacNeil, Joseph; Volaric, Lisa. J. Chem. Educ. 2003, 80, 302.
Chromatography |
Gases |
Reactions |
Oxidation / Reduction |
Thermodynamics |
Kinetics |
Gas Chromatography
|
The Analysis of Seawater: A Laboratory-Centered Learning Project in General Chemistry Jodye I. Selco, Julian L. Roberts, Jr., and Daniel B. Wacks
Experiment designed to introduce students to qualitative and quantitative analysis methods (gravimetric analysis, potentiometric titration, ion-selective electrodes, and atomic absorption and atomic emission spectroscopy) in the context of an overall analysis of an environmental sample.
Selco, Jodye I.; Roberts, Julian L., Jr.; Wacks, Daniel B. J. Chem. Educ. 2003, 80, 54.
Aqueous Solution Chemistry |
Instrumental Methods |
Qualitative Analysis |
Quantitative Analysis |
Water / Water Chemistry |
Gravimetric Analysis |
Titration / Volumetric Analysis |
Ion Selective Electrodes |
Atomic Spectroscopy |
Potentiometry
|
Principal Species and pH in Acid–Base Solutions Robert M. Hanson
Web page that allows one to determine the concentrations of principal species in a variety of solutions or mixtures of solutions; also allows a virtual titration.
Hanson, Robert M. J. Chem. Educ. 2002, 79, 1486.
Acids / Bases |
Aqueous Solution Chemistry |
Solutions / Solvents |
Titration / Volumetric Analysis |
Enrichment / Review Materials
|
Chemistry Comes Alive!, Volume 6
Abstract of Special Issue 30, a CD-ROM of Laboratory Techniques Jerrold J. Jacobsen, John W. Moore, John F. Zimmerman, and Lois M. Browne
Summary of Chemistry Comes Alive! Volume 6 focussing on laboratory techniques; includes manipulating and transferring samples, measuring, separating and purifying, safety, and quantitative techniques in volumetric analysis.
Jacobsen, Jerrold J.; Moore, John W.; Zimmerman, John F.; Browne, Lois M. J. Chem. Educ. 2002, 79, 1381.
Laboratory Equipment / Apparatus |
Titration / Volumetric Analysis |
Instrumental Methods |
Quantitative Analysis
|
CLIP: Acetic Anhydride Jay A. Young
Boric acid is a mild oxidizing agent.
Young, Jay A. J. Chem. Educ. 2002, 79, 1202.
Oxidation / Reduction
|
CLIP: Acetic Anhydride Charlie A. Crutchfield
Boric acid is not an oxidizing agent.
Crutchfield, Charlie A. J. Chem. Educ. 2002, 79, 1202.
Oxidation / Reduction
|
CLIP: Acetic Anhydride Charlie A. Crutchfield
Boric acid is not an oxidizing agent.
Crutchfield, Charlie A. J. Chem. Educ. 2002, 79, 1202.
Oxidation / Reduction
|
Determination of the Empirical Formula of a Copper Oxide Salt Using Two Different Methods Michael J. Sanger and Kimberly Geer
Converting copper oxide into copper metal using two different methods: reduction of copper oxide to copper metal using methane gas, and reduction of copper oxide to copper metal using aluminum in aqueous solution; the results are used to determine the empirical formula of copper oxide.
Sanger, Michael J.; Geer, Kimberly. J. Chem. Educ. 2002, 79, 994.
Oxidation / Reduction |
Stoichiometry |
Oxidation / Reduction |
Aqueous Solution Chemistry |
Metals
|
Determining Oxidation–Reduction on a Simple Number Line Amy L. Cox and James R. Cox
Using a simple number line to analyze oxidation-reduction reactions encountered in introductory/general chemistry, organic chemistry, and biochemistry.
Cox, Amy L.; Cox, James R. J. Chem. Educ. 2002, 79, 965.
Oxidation / Reduction
|
Precision in Microscale Titration Mono M. Singh, Cynthia B. McGowan, and Zvi Szafran
Comparing the precision of a 2-mL graduated pipet and 50-mL graduated buret in performing a microscale titration.
Singh, Mono M.; McGowan, Cynthia B.; Szafran, Zvi. J. Chem. Educ. 2002, 79, 941.
Laboratory Equipment / Apparatus |
Chemometrics |
Microscale Lab |
Titration / Volumetric Analysis
|
Precision in Microscale Titration Julian L. Roberts Jr.
Comparing the precision of a 2-mL graduated pipet and 50-mL graduated buret in performing a microscale titration.
Roberts, Julian L., Jr. J. Chem. Educ. 2002, 79, 941.
Laboratory Equipment / Apparatus |
Chemometrics |
Microscale Lab |
Titration / Volumetric Analysis
|
Precision in Microscale Titration Julian L. Roberts Jr.
Comparing the precision of a 2-mL graduated pipet and 50-mL graduated buret in performing a microscale titration.
Roberts, Julian L., Jr. J. Chem. Educ. 2002, 79, 941.
Laboratory Equipment / Apparatus |
Chemometrics |
Microscale Lab |
Titration / Volumetric Analysis
|
Experimental Design and Multiplexed Modeling Using Titrimetry and Spreadsheets Peter de B. Harrington, Erin Kolbrich, and Jennifer Cline
Determining the acidity of three vinegar samples using multiplexed titrations and an MS Excel spreadsheet.
Harrington, Peter de B.; Kolbrich, Erin; Cline, Jennifer. J. Chem. Educ. 2002, 79, 863.
Acids / Bases |
Chemometrics |
Stoichiometry |
Titration / Volumetric Analysis
|
Microscale pH Titrations Using an Automatic Pipet Edward B. Flint, Carrie L. Kortz, and Max A. Taylor
A technique for microscale pH titrations using 1-5 mL of analyte and titrant.
Flint, Edward B.; Kortz, Carrie L.; Taylor, Max A. J. Chem. Educ. 2002, 79, 705.
Acids / Bases |
Instrumental Methods |
Microscale Lab |
pH |
Titration / Volumetric Analysis
|
A Copper-Sulfate-Based Inorganic Chemistry Laboratory for First-Year University Students That Teaches Basic Operations and Concepts Emilio Rodríguez and Miguel Angel Vicente
A 10-hour integrated experiment that covers all the inorganic chemistry topics in first-year chemistry and chemical engineering courses.
Rodríguez, Emilio; Vicente, Miguel Angel. J. Chem. Educ. 2002, 79, 486.
Oxidation / Reduction |
Solutions / Solvents
|
A Consistent Set of Oxidation Number Rules for Intelligent Computer Tutoring Dale A. Holder, Benny G. Johnson, and Paul J. Karol
Consistent oxidation number rules derived from the chemical formula alone that are simple enough for introductory chemistry students.
Holder, Dale A.; Johnson, Benny G.; Karol, Paul J. J. Chem. Educ. 2002, 79, 465.
Oxidation / Reduction |
Oxidation State
|
Tick Tock, a Vitamin C Clock Stephen W. Wright
Uses supermarket chemicals to perform a clock reaction; students vary the concentration of reactants and observe the effect on the time required for the reaction to reach its endpoint.
Wright, Stephen W. J. Chem. Educ. 2002, 79, 40A.
Consumer Chemistry |
Oxidation / Reduction |
Vitamins |
Equilibrium |
Mechanisms of Reactions
|
Redox Redux: Recommendations for Improving Textbook and IUPAC Definitions Ed Vitz
Defining oxidation / reduction reactions as those in which oxidation states of the reactant(s) change.
Vitz, Ed. J. Chem. Educ. 2002, 79, 397.
Electrochemistry |
Mechanisms of Reactions |
Oxidation / Reduction |
Oxidation State
|
The Lead-Acid Battery: Its Voltage in Theory and in Practice Richard S. Treptow
Lead-acid battery fundamentals, cell voltage and the Nernst equation, and an analysis of actual battery performance.
Treptow, Richard S. J. Chem. Educ. 2002, 79, 334.
Electrochemistry |
Oxidation / Reduction |
Thermodynamics |
Electrolytic / Galvanic Cells / Potentials |
Acids / Bases |
Applications of Chemistry
|
The Vitamin C Clock Reaction Stephen W. Wright
Clock reaction using supermarket materials (vitamin C, hydrogen peroxide, tincture of iodine, and starch).
Wright, Stephen W. J. Chem. Educ. 2002, 79, 41.
Consumer Chemistry |
Oxidation / Reduction |
Vitamins |
Carboxylic Acids
|
Just Breathe: The Oxygen Content of Air JCE Editorial Staff
Students estimate the percent oxygen (volume) in air using steel wool in a test tube that is inverted in a beaker of water. Oxygen in the trapped air reacts with iron to form rust, and the water level rises inside the test tube; within 30-45 minutes, the majority of oxygen is consumed.
JCE Editorial Staff. J. Chem. Educ. 2001, 78, 512A.
Electrochemistry |
Gases |
Oxidation / Reduction
|
Burning to Learn: An Introduction to Flame Retardants JCE Editorial Staff
This activity demonstrates the effectiveness of flame retardants, substances added to combustible materials to slow down or hinder burning.
JCE Editorial Staff, . J. Chem. Educ. 2001, 78, 328A.
Oxidation / Reduction
|
A Discovery-Based Experiment Illustrating How Iron Metal Is Used to Remediate Contaminated Groundwater Barbara A. Balko and Paul G. Tratnyek
Procedure in which students investigate the chemistry of iron-permeable reactive barriers and their application to the remediation of contaminated groundwater.
Balko, Barbara A.; Tratnyek, Paul G. J. Chem. Educ. 2001, 78, 1661.
Kinetics |
Oxidation / Reduction |
Water / Water Chemistry |
Metals |
Applications of Chemistry |
Aqueous Solution Chemistry
|
Demonstrations with Nitrocellulose: Possible Further Pedagogic Value (re J. Chem. Educ. 2000, 77, 1449) Edward G. Senkbeil
Characteristic of explosives to have fuel and oxidizer in the same structure.
Senkbeil, Edward G. J. Chem. Educ. 2001, 78, 1596.
Descriptive Chemistry |
Oxidation / Reduction |
Calorimetry / Thermochemistry |
Rate Law
|
Demonstrations with Nitrocellulose: Possible Further Pedagogic Value (re J. Chem. Educ. 2000, 77, 1449) J. C. Jones
Characteristic of explosives to have fuel and oxidizer in the same structure.
Jones, J. C. J. Chem. Educ. 2001, 78, 1596.
Descriptive Chemistry |
Oxidation / Reduction |
Calorimetry / Thermochemistry |
Rate Law
|
Acid-Base Indicators: A New Look at an Old Topic Ara S. Kooser, Judith L. Jenkins, and Lawrence E. Welch
An acid-base titration in which students choose the best indicator from a set of possibilities using a conductivity probe to help them make an informed choice.
Kooser, Ara S.; Jenkins, Judith L.; Welch, Lawrence E. J. Chem. Educ. 2001, 78, 1504.
Acids / Bases |
Conductivity |
Dyes / Pigments |
Laboratory Computing / Interfacing |
Titration / Volumetric Analysis |
Quantitative Analysis
|
The Joy of Color in Ceramic Glazes with the Help of Redox Chemistry Allen A. Denio
The chemistry of pottery, ceramic glazes, and the firing process.
Denio, Allen A. J. Chem. Educ. 2001, 78, 1298.
Oxidation / Reduction |
Geochemistry |
Applications of Chemistry |
Dyes / Pigments |
Metals
|
A Microscale Spectrophotometric Determination of Water Hardness James S. Gordon
Measuring water hardness using EDTA as a titrant, calmagite as an indicator, a colorimeter, and a graphing calculator.
Gordon, James S. J. Chem. Educ. 2001, 78, 1089.
UV-Vis Spectroscopy |
Water / Water Chemistry |
Titration / Volumetric Analysis
|
Is Every Transparent Liquid Water? Muhamad Hugerat and Sobhi Basheer
Comparisons of the properties (polarity, electric conductivity, color change due to the presence of an acid-base indicator, and electrolysis) of three transparent and colorless liquids: water, glycerol, hexane, and ethanol.
Hugerat, Muhamad; Basheer, Sobhi. J. Chem. Educ. 2001, 78, 1041.
Acids / Bases |
Electrochemistry |
Oxidation / Reduction |
Conductivity |
Electrophoresis
|
Icarus and Sun, Not Only in Mythology but Also in the Laboratory! Mrinalini G. Walawalkar and Herbert W. Roesky
Igniting a paper airplane treated with potassium nitrate using light focussed by a magnifying glass.
Walawalkar, Mrinalini G.; Roesky, Herbert W. J. Chem. Educ. 2001, 78, 912.
Photochemistry |
Oxidation / Reduction
|
Combustion of White Phosphorus Richard L. Keiter and Chaminda P. Gamage
The combustion of white phosphorus.
Keiter, Richard L.; Gamage, Chaminda P. J. Chem. Educ. 2001, 78, 908.
Descriptive Chemistry |
Photochemistry |
Main-Group Elements |
Oxidation / Reduction
|
Laboratory Experiments on Electrochemical Remediation of the Environment. Part 5: Indirect H2S Remediation J. G. Ibanez
Experiment to introduce students in general chemistry, environmental chemistry, or electrochemistry to the concept of indirect electrolysis, its application in environmental remediation schemes, the role of a mediator, and the application of redox chemistry concepts.
Ibanez, J. G. J. Chem. Educ. 2001, 78, 778.
Electrochemistry |
Gases |
Microscale Lab |
Oxidation / Reduction |
Applications of Chemistry
|
Analysis of an Oxygen Bleach: A Redox Titration Lab Christine L. Copper and Edward Koubek
Students balance the reaction of H2O2 and MnO4 in two different ways (one assuming that H2O2 is the oxygen source and a second assuming that MnO4 is the oxygen source), determine which of these balanced equations has the correct stoichiometry by titrating a standard H2O2 solution with KMnO4, and use the correct balanced equation to determine the mass percent of H2O2 in a commercially available bleach solution.
Copper, Christine L.; Koubek, Edward. J. Chem. Educ. 2001, 78, 652.
Quantitative Analysis |
Oxidation / Reduction |
Stoichiometry |
Titration / Volumetric Analysis |
Consumer Chemistry
|
The Household Chemistry of Cleaning Pennies Laurence D. Rosenhein
Although it is well known that solutions of vinegar and table salt are effective in removing tarnish from pennies, chemical explanations of this behavior are not included in sources of this "household chemistry" and erroneous explanations have crept into popular literature on this subject; this article provides some relevant empirical information on the system.
Rosenhein, Laurence D. J. Chem. Educ. 2001, 78, 513.
Consumer Chemistry |
Coordination Compounds |
Oxidation / Reduction
|
The Synthesis and Analysis of Copper(I) Iodide. A First-Year Laboratory Project Lara A. Margolis, Richard W. Schaeffer, and Claude H. Yoder
This project provides a convenient preparation of a compound whose identity will not be obvious to students. The analytical procedures illustrate the fundamentals of gravimetric analysis and some basic chemical and physical characteristics of the elements. The analytical data allow students to find the identity of the product by determining its empirical formula.
Margolis, Lara A.; Schaeffer, Richard W.; Yoder, Claude H. J. Chem. Educ. 2001, 78, 235.
Synthesis |
Oxidation / Reduction |
Stoichiometry |
Gravimetric Analysis |
Qualitative Analysis |
Stoichiometry
|
Teaching about Flame Retardants. A Joint Israeli-Dutch Project Miri Kesner and Wobbe de Vos
Flame retardants make interesting chemistry and moreover, the chemistry is highly relevant from an everyday life point of view. This article reports on a joint Israeli-Dutch project aimed at teaching the production, properties, and applications of some bromine-containing flame retardants, including their environmental aspects, in secondary education.
Kesner, Miri; de Vos, Wobbe. J. Chem. Educ. 2001, 78, 41.
Industrial Chemistry |
Oxidation / Reduction |
Reactions |
Applications of Chemistry
|
Combustion Demonstration Using Updated Flame Tornado Edward G. Senkbeil
This demonstration uses the combustion of different forms of cellulose and an updated version of the "flame tornado" as an ignition source to illustrate the factors affecting the combustion process. The objectives of the experiment are to illustrate the factors affecting the rate of a combustion reaction and to demonstrate the factors affecting the production of a flame by using the flame tornado.
Senkbeil, Edward G. J. Chem. Educ. 2000, 77, 1449.
Descriptive Chemistry |
Oxidation / Reduction |
Reactions |
Rate Law
|
SolEq: Solution Equilibria, Principles and Applications, Release 1
by SolEq Project Team: L. D. Pettit, K. J. Powell, and R. W. Ramette Marina C. Koether
29 tutorials with simulation, calculations, and graphs, on solution equilibria.
Koether, Marina C. J. Chem. Educ. 2000, 77, 1414.
Equilibrium |
Solutions / Solvents |
Titration / Volumetric Analysis
|
Comparisons and Demonstrations of Scientific Calculators Myung-Hoon Kim, Suw-Young Ly, and Tae-Kee Hong
Scientific calculators are compared in terms of their capacities, featuring many advantages of the graphic calculator over simple nongraphic calculators. Applications in this paper include a simulation of acid-base titration curves, and graphic display of a time course of concentrations of reactants and products for a chemical reaction with first-order kinetics.
Kim, Myung-Hoon; Ly, Suw-Young; Hong, Tae-Kee. J. Chem. Educ. 2000, 77, 1367.
Acids / Bases |
Kinetics |
Titration / Volumetric Analysis
|
Determining the EDTA Content in a Consumer Shower Cleaner. An Introductory Chemistry Laboratory Experiment Willis A. Weigand
This article describes the experiment to determine the EDTA content in a shower-cleaning product. The classic EDTA/calcium complexometric titration can be used to determine the EDTA content of the cleaner.
Weigand, Willis A. J. Chem. Educ. 2000, 77, 1334.
Consumer Chemistry |
Nonmajor Courses |
Titration / Volumetric Analysis |
Quantitative Analysis
|
Determination of Ksp, ΔG0, ΔH0, and ΔS0 for the Dissolution of Calcium Hydroxide in Water: A General Chemistry Experiment William B. Euler, Louis J. Kirschenbaum, and Ben Ruekberg
This exercise utilizes low-cost, relatively nonhazardous materials presenting few disposal problems. It reinforces the students' understanding of the interrelationship of solubility, Ksp, ΔG0, ΔH0, and ΔS0.
Euler, William B.; Kirschenbaum, Louis J.; Ruekberg, Ben. J. Chem. Educ. 2000, 77, 1039.
Equilibrium |
Thermodynamics |
Titration / Volumetric Analysis
|
Letters
Points out that solid NaHSO3 does not exist.
Tudela, David. J. Chem. Educ. 2000, 77, 830.
Gases |
Oxidation / Reduction |
Carbohydrates
|
A Comparative Study of Microscale and Standard Burets Mono M. Singh, Cynthia B. McGowan, Zvi Szafran, and R. M. Pike
This paper describes a comparative study of the performance of microscale titrations using 2-mL microscale burets with those using Beral pipets and normal 50- and 10-mL burets. The usefulness of a microburet in general and analytical chemistry is demonstrated by presenting results from acid-base, oxidation-reduction, precipitation, complexometric, and pH titrations.
Singh, Mono M.; McGowan, Cynthia B.; Szafran, Zvi; Pike, Ronald M. J. Chem. Educ. 2000, 77, 625.
Acids / Bases |
Aqueous Solution Chemistry |
Laboratory Equipment / Apparatus |
Microscale Lab |
Quantitative Analysis |
Oxidation / Reduction |
Titration / Volumetric Analysis |
pH |
Precipitation / Solubility
|
Entertaining Chemistry--Two Colorful Reactions John F. Elsworth
Solutions of acid and iodine, with and without starch, are mixed with alkaline solutions containing thiosulfate and appropriate salts to produce desirable color effects.
Elsworth, John F. J. Chem. Educ. 2000, 77, 484.
Acids / Bases |
Oxidation / Reduction
|
A Simple Laboratory-Constructed Automatic Titrator Kurt L. Headrick, Terry K. Davies, and Aaron N. Haegele
The construction of a simple automatic titrator is described. The buret is replaced with a metering pump to provide a constant flow of titrant. The output from the pH meter is sent to a recorder via a laboratory- constructed differentiator, allowing the results to be plotted as potential versus time, first or second derivative
Headrick, Kurt L.; Davies, Terry K.; Haegele, Aaron N. J. Chem. Educ. 2000, 77, 389.
Instrumental Methods |
Acids / Bases |
Laboratory Equipment / Apparatus |
Quantitative Analysis |
Titration / Volumetric Analysis
|
Catalytic Oxidation of Ammonia: A Sparkling Experiment Vladimir A. Volkovich and Trevor R. Griffiths
A lecture demonstration experiment on the catalytic oxidation of ammonia using chromium(III) oxide as a catalyst is described.
Volkovich, Vladimir A.; Griffiths, Trevor R. J. Chem. Educ. 2000, 77, 177.
Catalysis |
Oxidation / Reduction |
Reactions
|
Ascorbic Acid as a Standard for Iodometric Titrations: An Analytical Experiment for General Chemistry Cesar R. Silva, Jose A. Simoni, Carol H. Collins, and Pedro L. O. Volpe
Ascorbic acid is suggested as the weighable compound for the standardization of iodine solutions in an analytical experiment in general chemistry. The experiment involves an iodometric titration in which iodine reacts with ascorbic acid, oxidizing it to dehydroascorbic acid.
Silva, Cesar R.; Simoni, Jose A.; Collins, Carol H.; Volpe, Pedro L. O. J. Chem. Educ. 1999, 76, 1421.
Oxidation / Reduction |
Quantitative Analysis |
Titration / Volumetric Analysis |
Acids / Bases
|
The Softening of Hard Water and Complexometric Titrations: An Undergraduate Experiment Helena Ceretti, Enrique A. Hughes, and Anita Zalts
An experiment in which (i) water hardness is explained and demonstrated; (ii) ion-exchange resin properties are visually demonstrated and then used for softening water; (iii) complexometric titrations are used for evaluating water hardness before and after softening; and (iv) acid-base titration can be used to show that the Ca/Mg ions removed by the ion exchanger are replaced by H ions.
Ceretti, Helena; Hughes, Enrique A.; Zalts, Anita. J. Chem. Educ. 1999, 76, 1420.
Ion Exchange |
Quantitative Analysis |
Titration / Volumetric Analysis |
Water / Water Chemistry |
Acids / Bases
|
Chemistry Comes Alive! Vol. 3: Abstract of Special Issue 23 on CD-ROM Jerrold J. Jacobsen and John W. Moore
Volume 3 contains several related topics generally included in an introductory chemistry course. The general areas are Enthalpy and Thermodynamics, Oxidation-Reduction, and Electrochemistry.
Jacobsen, Jerrold J.; Moore, John W. J. Chem. Educ. 1999, 76, 1311.
Calorimetry / Thermochemistry |
Thermodynamics |
Oxidation / Reduction |
Electrochemistry
|
Lemon Cells Revisited Radhakrishnamurty, P.
Analysis of the reactions and nature of the electrodes in the lemon cell.
Radhakrishnamurty, P. J. Chem. Educ. 1999, 76, 1190.
Electrochemistry |
Electrolytic / Galvanic Cells / Potentials |
Oxidation / Reduction
|
Predicting Acid-Base Titration Curves without Calculations Dennis W. Barnum
In this paper a qualitative and systematic method for sketching titration curves is presented. Even the more complex cases such as salts or polyprotic acids and bases are treated just as easily as simple monoprotic acids. Having students predict the shape of titration curves from known equilibrium constants helps to focus attention on the general principles without distraction by the mathematics.
Barnum, Dennis W. J. Chem. Educ. 1999, 76, 938.
Acids / Bases |
Quantitative Analysis |
Water / Water Chemistry |
Equilibrium |
Learning Theories |
Titration / Volumetric Analysis |
Chemometrics
|
A Further Demonstration of Sulfite-Induced Redox Cycling of Metal Ions Initiated by Shaking Horacio D. Moya, Eduardo Almeida Neves, and Nina Coichev
Details of a fascinating laboratory demonstration of the sulfite-induced redox cycling of Ni(II)/Ni(III), which is initiated by shaking the solution in the presence of air, are reported. The balance between the sulfite and oxygen concentration controls the direction of the overall reaction.
Moya, Horacio D.; Neves, Eduardo Almeida; Coichev, Nina. J. Chem. Educ. 1999, 76, 930.
Oxidation / Reduction |
Metals |
Catalysis
|
An Analysis of College Chemistry Textbooks As Sources of Misconceptions and Errors in Electrochemistry Michael J. Sanger and Thomas J. Greenbowe
The oxidation-reduction and electrochemistry chapters of 10 introductory college chemistry textbooks were reviewed for misleading or erroneous statements, using a list of student misconceptions. As a result of this analysis, we provide suggestions for chemistry instructors and textbook authors.
Sanger, Michael J.; Greenbowe, Thomas J. J. Chem. Educ. 1999, 76, 853.
Electrochemistry |
Oxidation / Reduction |
Learning Theories
|
The Methane Balloon Walter H. Corkern and Elvin Hughes Jr.
The objectives are (i) to describe a novel method of inflating a balloon with methane, (ii) to show that methane is lighter than air, and (iii) to demonstrate the flammability of methane.
Corkern, Walter H.; Hughes, Elvin, Jr. J. Chem. Educ. 1999, 76, 794.
Gases |
Oxidation / Reduction |
Reactions
|
A Simple, Safe Way To Prepare Halogens and Study Their Visual Properties at a Technical Secondary School Domingo A. Liprandi, Orlando R. Reinheimer, José F. Paredes, and Pablo C. L'Argentière
In this paper we propose an easy-to-build apparatus to obtain chlorine, bromine, and iodine. The experiment was developed considering not only theoretical and safety conditions but simplicity and clarity as well.
Liprandi, Domingo A.; Reinheimer, Orlando R.; Paredes, José F.; L'Argentière, Pablo C. J. Chem. Educ. 1999, 76, 532.
Oxidation / Reduction |
Aqueous Solution Chemistry
|
Is It Real Gold? Harold H. Harris
The oxidation-reduction couples involved in the corrosion of gold alloys and the dissolution of "noble" metals are related to an inquiry to the newspaper columnist, Ann Landers. the origin of several contemporary phrases (touch stone, acid test, Hallmark) are found in the chemistry of gold.
Harris, Harold H. J. Chem. Educ. 1999, 76, 198.
Acids / Bases |
Oxidation / Reduction |
Qualitative Analysis |
Applications of Chemistry
|
A Unified Titration Formula P. Glaister
In a number of standard titrations, a volume of a monoprotic base MOH at a specific concentration is added to a volume of a monoprotic acid HA at a specific concentrations. Four different types of titration are possible, depending on whether the acid and base are strong or weak. A single unifying formula covering all four cases has been determined.
Glaister, P. J. Chem. Educ. 1999, 76, 132.
Acids / Bases |
Titration / Volumetric Analysis |
Quantitative Analysis
|
Student Construction of a Gel-Filled Ag/AgCl Reference Electrode for Use in a Potentiometric Titration James M. Thomas
Instructions for the preparation of a Ag/AgCl "reference"-type electrode that uses a gel-type matrix are given. In addition, construction steps are provided for a very sturdy Pt-nichrome "inert" electrode, which can be used many times. Together, these two electrodes, along with a multivoltmeter, have been used successfully to determine the percent of iron in Fe(NH4)2(SO4)2 and in Fe2O2 unknowns purchased commercially.
Thomas, James M. J. Chem. Educ. 1999, 76, 97.
Instrumental Methods |
Electrochemistry |
Quantitative Analysis |
Oxidation / Reduction |
Laboratory Equipment / Apparatus |
Titration / Volumetric Analysis
|
The Nernst Equation: Determination of Equilibrium Constants for Complex Ions of Silver Martin L. Thompson and Laura J. Kateley
The experiment requires a voltmeter capable of recording millivolts (or a good pH meter) and inexpensive chemicals. It allows students to check the validity of the Nernst equation and compare their experimental Kform values to reported ones.
Thompson, Martin L.; Kateley, Laura J. J. Chem. Educ. 1999, 76, 95.
Equilibrium |
Coordination Compounds |
Electrochemistry |
Oxidation / Reduction
|
Microscale Thermite Reactions Francisco J. Arnáiz, Rafael Aguado, and Susana Arnáiz
The reaction of aluminum with the oxides of a variety of elements illustrates exothermic reactions that require a high activation energy. It is also an appropriate experiment with regard to the discussion of Ellingham diagrams. When drama is not the main objective, conducting these reactions at microscale level offers numerous advantages over the usual scale.
Arnáiz, Francisco J.; Aguado, Rafael; Arnáiz, Susana. J. Chem. Educ. 1998, 75, 1630.
Microscale Lab |
Reactions |
Oxidation / Reduction
|
Generating Water-Soluble Noxious Gases: An Overhead Projector Demonstration Sally Solomon, Maria Oliver-Hoyo, and Chinhyu Hur
A simple, inexpensive apparatus to generate and collect water-soluble noxious gases as an overhead projector demonstration can be made from two small beakers and a Petri dish. The detection and generation of sulfur dioxide and nitrogen dioxide are described.
Solomon, Sally; Oliver-Hoyo, Maria; Hur, Chinhyu. J. Chem. Educ. 1998, 75, 1581.
Gases |
Oxidation / Reduction |
Carbohydrates |
Toxicology
|
Lead Globules Francisco J. Arnáiz and Maria R. Pedrosa
Reaction of plumbate solutions with aluminum. A variety of lead films can be formed depending on the conditions. The method we describe permits obtaining a large lead globule in less than 1 minute.
Arnáiz, Francisco J.; Pedrosa, Maria R. J. Chem. Educ. 1998, 75, 1431.
Qualitative Analysis |
Oxidation / Reduction
|
A Simple, Transparent Fume Hood John Fredericks
An inexpensive transparent fume hood can be constructed from a clear-plastic two-liter soft drink bottle that is cut just above the base. A length of vacuum tubing is secured to the opening of the bottle using black electrical tape. The tubing is then connected to a water aspirator.
Fredericks, John. J. Chem. Educ. 1998, 75, 1299.
Gases |
Laboratory Equipment / Apparatus |
Oxidation / Reduction |
Laboratory Management
|
Automatic Titrators in the Analytical and Physical Chemistry Laboratories Kathryn R. Williams
In 1995 the University of Florida received an NSF-ILI grant to purchase six automatic titrators, which have now been successfully integrated into the analytical and physical chemistry teaching laboratories. After they have mastered fundamental techniques, students in the introductory analytical laboratory gain experience with automated analyses in three experiments: the iodimetric analysis of ascorbic acid, the determination of polymer molecular weight, and the analysis of chloride by ion selective electrode.
Williams, Kathryn R. J. Chem. Educ. 1998, 75, 1133.
Electrochemistry |
Laboratory Equipment / Apparatus |
Titration / Volumetric Analysis
|
Let's Dot Our I's and Cross Our T's Leenson, Ilya A.
Leenson, Ilya A. J. Chem. Educ. 1998, 75, 1088.
Stoichiometry |
Oxidation / Reduction
|
Basic Laboratory Chemistry reviewed by Deborah McCool
Basic Laboratory Chemistry is a series of sixteen programs presenting demonstrations of many processes and experimental techniques used in the chemistry laboratory in both macroscale and microscale. Topics included in the programs are assembling macroscale and microscale apparatus, spectroscopy, chromatography, and procedures such as filtration, extraction, distillation, and titration.
McCool, Deborah. J. Chem. Educ. 1998, 75, 830.
Microscale Lab |
Spectroscopy |
Chromatography |
Separation Science |
Titration / Volumetric Analysis
|
Sugar Dehydration without Sulfuric Acid: No More Choking Fumes in the Classroom! Todd P. Silverstein and Yi Zhang
Our demonstration uses no sulfuric acid, yields relatively little smoke, and produces an exciting and unpredictable growing column of black carbon.
Silverstein, Todd P.; Zhang, Yi. J. Chem. Educ. 1998, 75, 748.
Carbohydrates |
Thermodynamics |
Electrochemistry |
Solid State Chemistry |
Oxidation / Reduction
|
Slide Projector Corrosion Cell Silvia Tejada, Estela Guevara, and Esperanza Olivares
The process of corrosion can be demonstrated in a slide projector, since the cell is in the shape of a slide, or on the stage of an overhead projector by setting up a simple galvanic cell. Corrosion occurs as the result of a galvanic cell reaction, in which the corroding metal acts as the anode. Several simple demonstrations relating to corrosion are described here.
Tejada, Silvia; Guevara, Estela; Olivares, Esperanza. J. Chem. Educ. 1998, 75, 747.
Electrochemistry |
Microscale Lab |
Oxidation / Reduction |
Reactions |
Electrolytic / Galvanic Cells / Potentials |
Applications of Chemistry
|
Chemical Domino Demonstration M. Dale Alexander
The Chemical Domino Demonstration is both educational and entertaining. It provides an excellent means for a review of chemical concepts at the conclusion of a general chemistry course. This demonstration consists of a number of different chemical reactions occurring in sequence in a Rube Goldberg-type apparatus.
M. Dale Alexander. J. Chem. Educ. 1998, 75, 490.
Reactions |
Acids / Bases |
Oxidation / Reduction
|
The Chemical Adventures of Sherlock Holmes: The Baker Street Burning Thomas G. Waddell and Thomas R. Rybolt
A chemical mystery featuring Sherlock Holmes and Dr. Watson.
Thomas G. Waddell and Thomas R. Rybolt. J. Chem. Educ. 1998, 75, 484.
Enrichment / Review Materials |
Forensic Chemistry |
Qualitative Analysis |
Oxidation / Reduction |
Alcohols |
Dyes / Pigments
|
A Guided Inquiry Approach to NMR Spectroscopy Laura E. Parmentier, George C. Lisensky, and Brock Spencer
The authors present a novel way to introduce NMR spectroscopy into the general chemistry curriculum as part of a week-long aspirin project in their one-semester introductory course. Purity is determined by titration and IR and NMR spectroscopy.
Laura E. Parmentier, George C. Lisensky, and Brock Spencer. J. Chem. Educ. 1998, 75, 470.
Learning Theories |
NMR Spectroscopy |
Instrumental Methods |
IR Spectroscopy |
Titration / Volumetric Analysis |
Quantitative Analysis
|
Analysis of Iron in Ferritin, the Iron-Storage Protein: A General Chemistry Experiment Maureen J. Donlin, Regina F. Frey, Christopher Putnam, Jody Proctor, and James K. Bashkin
The chemical properties of the iron-storage protein ferritin will be examined in this experiment by quantitating the average amount of iron in a ferritin sample, and observing the kinetics of iron release from the protein core under reducing conditions. Students learn and apply the principles of absorption spectroscopy, redox reactions, and metal chelation to study ferritin.
Maureen J. Donlin, Regina F. Frey, Christopher Putnam, Jody Proctor, and James K. Bashkin. J. Chem. Educ. 1998, 75, 437.
Oxidation / Reduction |
UV-Vis Spectroscopy |
Proteins / Peptides
|
A Modified Microburet for Microscale Titration Mono M. Singh, Cynthia McGowan, Zvi Szafran, and Ronald M. Pike
A modified microburet can be constructed inexpensively from readily available laboratory materials. These materials include a 2 mL graduated pipet, a 5 or 10 mL plastic syringe body, a small piece of latex tubing, and a small size automatic delivery pipet tip. The modified microburet is easy to use, and gives accurate results.
Singh, Mono M.; McGowan, Cynthia; Szafran, Zvi; Pike, Ronald M. J. Chem. Educ. 1998, 75, 371.
Laboratory Equipment / Apparatus |
Microscale Lab |
Acids / Bases |
Titration / Volumetric Analysis
|
Uncommon Oxidation Numbers of Nonmetals Wayne P. Anderson
Common oxidation numbers of representative elements can be predicted from valence electron box diagrams. Exception to these values generally result from the presence of an odd number of electrons, homonuclear bonds, or attached atoms having electronegativity values that bracket that of the atom in question.
Anderson, Wayne P. J. Chem. Educ. 1998, 75, 187.
Theoretical Chemistry |
Oxidation / Reduction |
Oxidation State
|
"Mud" +" Blood" - A Very Colorful Demonstration Gordon F. Hambly
The preparation of "blood" and "mud" solutions is given to show that when combined the mixture solutions goes from a mud-color to colorless.
Hambly, Gordon F. J. Chem. Educ. 1998, 75, 56.
Oxidation / Reduction
|
Acid Rain Demonstration: The Formation of Nitrogen Oxides as a By-Product of High-Temperature Flames in Connection with Internal Combustion Engines Jerry A. Driscoll
This demonstration illustrates the formation of nitrogen oxides resulting from a high temperature flame.
Driscoll, Jerry A. J. Chem. Educ. 1997, 74, 1424.
Equilibrium |
Learning Theories |
Water / Water Chemistry |
Oxidation / Reduction
|
Complexometric Titrations: Competition of Complexing Agents in the Determination of Water Hardness with EDTA M. Cecilia Yappert and Donald B. DuPre
The competition of complexing agents for the same metal ion and the formation of colored metal-ion complexes is demonstrated with the use of an overhead projector. This demonstration can be used to emphasize both the relevance of the relative values of formation constants in the complexation of metal cations and the applicability of complexometric titrations in quantitative chemical analysis.
Yappert, M. Cecilia; DuPre, Donald B. J. Chem. Educ. 1997, 74, 1422.
Equilibrium |
Coordination Compounds |
Qualitative Analysis |
Quantitative Analysis |
Titration / Volumetric Analysis |
Aqueous Solution Chemistry |
Water / Water Chemistry |
Metals
|
Redox Balancing without Puzzling Marten J. ten Hoor
Once it has been established by experiment that the given reactants can indeed be converted into the given products, chemistry has done its job. Balancing the equation of the reaction is a matter of mathematics only.
ten Hoor, Marten J. J. Chem. Educ. 1997, 74, 1367.
Stoichiometry |
Oxidation / Reduction
|
Letter to the Editor about Letter to the Editor "Redox Challenges" from David M. Hart and Response from Roland Stout (J. Chem. Educ. 1996, 73, A226-7) Andrzej Sobkowiak
Examples of a variety of redox equations.
Sobkowiak, Andrzej. J. Chem. Educ. 1997, 74, 1256.
Stoichiometry |
Reactions |
Oxidation / Reduction
|
Constructing Chemical Concepts through a Study of Metals and Metal Ions: Guided Inquiry Experiments for General Chemistry Ram S. Lamba, Shiva Sharma, and Baird W. Lloyd
A set of inquiry-based experiments designed to help students develop an understanding of basic chemical concepts within the framework of studying the properties and reactivity of metals and metal ions.
Lamba, Ram S.; Sharma, Shiva; Lloyd, Baird W. J. Chem. Educ. 1997, 74, 1095.
Electrochemistry |
Metals |
Oxidation / Reduction |
Stoichiometry
|
The Sodium Rainbow Miroslav Proksa
A new approach to the reaction of sodium with water to produce a "rainbow" of colors.
Proksa, Miroslav. J. Chem. Educ. 1997, 74, 942.
Acids / Bases |
Metals |
Oxidation / Reduction
|
An Analysis of the Algebraic Method for Balancing Chemical Reactions John A. Olson
A new aspect of this treatment is the mathematical formulation of a third condition involving a balance between oxidation and reduction. The treatment begins with the three general conditions that a balanced chemical reaction must satisfy. These conditions are then expressed in mathematical form that enables the stoichiometric coefficients to be determined.
Olson, John A. . J. Chem. Educ. 1997, 74, 538.
Oxidation / Reduction |
Stoichiometry
|
The Gelation of Poly(Vinyl Alcohol) with Na2B4O7 · 10H2O: Killing Slime K. W. McLaughlin, N. K. Wyffels, A. B. Jentz, and M. V. Keenan
The titration of slime with sulfuric acid allows students to examine the relationship between cross-linking, viscosity, and the onset of gelation. This modification to a popular chemistry demonstration produces an interesting chemistry laboratory experiment designed to introduce students to the relationship between molecular structure and the bulk properties of macromolecules.
McLaughlin, K. W.; Wyffels, N. K.; Jentz, A. B.; and Keenan, M. V. J. Chem. Educ. 1997, 74, 97.
Titration / Volumetric Analysis
|
Redox Rap Laura Kolonie
Lyrics to a redox rap song.
Kolonie, Laura. J. Chem. Educ. 1997, 74, 22.
Oxidation / Reduction
|
Redox Challenges (the author replies) Stout, Roland
Algebraic solution to balancing a redox equation.
Stout, Roland J. Chem. Educ. 1996, 73, A227.
Stoichiometry |
Oxidation / Reduction |
Oxidation State
|
Redox Challenges (2) Zaugg, Noel S.
Algebraic solution to balancing a redox equation.
Zaugg, Noel S. J. Chem. Educ. 1996, 73, A226.
Stoichiometry |
Oxidation / Reduction |
Oxidation State
|
Redox Challenges (1) Hart, David M.
Algebraic solution to balancing a redox equation.
Hart, David M. J. Chem. Educ. 1996, 73, A226.
Stoichiometry |
Oxidation / Reduction |
Oxidation State
|
Quantitative Techniques in Volumetric Analysis John Zimmerman and Jerrold J. Jacobsen
Quantitative Techniques in Volumetric Analysis is a visual library of techniques used in making volumetric measurements. This 40-minute VHS videotape is designed as a resource for introducing students to proper volumetric methods and procedures.
Zimmerman, John; Jacobsen, Jerrold J. J. Chem. Educ. 1996, 73, 1117.
Quantitative Analysis |
Titration / Volumetric Analysis
|
Concept Maps in Chemistry Education Alberto Regis, Pier Giorgio Albertazzi, Ezio Roletto
This article presents and illustrates a proposed application of concept maps in chemistry teaching in high schools. Three examples of the use of concept maps in chemistry teaching are reported and discussed with reference to: atomic structure, oxidation-reduction and thermodynamics.
Regis, Alberto; Albertazzi, Pier Giorgio; Roletto, Ezio. J. Chem. Educ. 1996, 73, 1084.
Learning Theories |
Atomic Properties / Structure |
Oxidation / Reduction |
Thermodynamics
|
A Student-Designed Potentiometric Titration: Quantitative Determination of Iron(II) by Caro's Acid Titration Joyce R. Powell, Sheryl A. Tucker, William E. Acree Jr., Jennifer A. Sees, Lindsey H. Hall
A laboratory experiment involving the feasibility of using Caro's acid, H2SO5, as a titrant in the potentiometric determination of iron(II) is presented.
Powell, Joyce R.; Tucker, Sheryl A.; Acree Jr., William E.; Sees, Jennifer A.; Hall, Lindsey H. J. Chem. Educ. 1996, 73, 984.
Potentiometry |
Titration / Volumetric Analysis |
Oxidation / Reduction |
Quantitative Analysis
|
A Simple Method for Determining the Temperature Coefficient of Voltaic Cell Voltage Alfred E. Saieed, Keith M. Davies
This article describes a relatively simple method for preparing voltaic cells, and through their temperature coefficient, ?E/?T, it explores relationships between ?G, ?H,and ?S for the cell reactions involved.
Saieed, Alfred E.; Davies, Keith M. J. Chem. Educ. 1996, 73, 959.
Electrochemistry |
Calorimetry / Thermochemistry |
Thermodynamics |
Electrolytic / Galvanic Cells / Potentials |
Laboratory Equipment / Apparatus |
Laboratory Management |
Oxidation / Reduction
|
A Multistep Equilibria-Redox-Complexation Demonstration to Illustrate Le Châtelier's Principle Tomás G. Berger and Edward K. Mellon
This brief article describes a demonstration that has been used to discuss Le Chtelier's principle, redox chemistry, equilibria versus steady state situations, and solubility of species.
Berger, Tomás G.; Mellon, Edward K. . J. Chem. Educ. 1996, 73, 783.
Oxidation / Reduction |
Equilibrium |
Precipitation / Solubility
|
Interactive Computer Visualization in the Introductory Chemistry Curriculum Victoria M. Bragin
This project explores the use of technological innovations to facilitate learning in introductory chemistry courses by those with a poor academic background, while also challenging those prepared to master the curriculum.
Bragin, Victoria M. J. Chem. Educ. 1996, 73, 747.
Gases |
Rate Law |
Kinetic-Molecular Theory |
Titration / Volumetric Analysis |
Periodicity / Periodic Table |
Electrochemistry
|
The Iodide-Catalyzed Decomposition of Hydrogen Peroxide: A Simple Computer-Interfaced Kinetics Experiment for General Chemistry John C. Hansen
188. The reaction studied is the iodide-catalyzed decomposition of hydrogen peroxide. The rate of oxygen production is measured as a function of time using a computer-interfaced pressure transducer.
Hansen, John C. J. Chem. Educ. 1996, 73, 728.
Rate Law |
Kinetics |
Catalysis |
Oxidation / Reduction
|
Constant-Current Coulometric Titration of Hydrochloric Acid James Swim, Edward Earps, Laura M. Reed, and David Paul
In this experiment we have combined the titration of a strong acid with a strong base and the electrolysis of water into one complete laboratory experience.
James Swim, Edward Earps, Laura M. Reed, and David Paul. J. Chem. Educ. 1996, 73, 679.
Titration / Volumetric Analysis |
Acids / Bases |
Water / Water Chemistry |
Electrochemistry |
Oxidation / Reduction
|
A Simpler Approach to "Apparent" pKa's Kildahl, Nicholas
Addition to a recent article on pH, indicating an approach which emphasizes the chemistry behind the titration of a weak acid.
Kildahl, Nicholas J. Chem. Educ. 1996, 73, 598.
pH |
Acids / Bases |
Titration / Volumetric Analysis
|
Sodium Chloride Revisited Robert V. Stick and Mauro Mocerino
This "Tested Demonstration" describes the preparation of sodium chloride from its elements, sodium and chlorine. Along the way, tests for chlorine, iodine, and the chloride ion are included.
Stick, Robert V.; Mocerino, Mauro. J. Chem. Educ. 1996, 73, 539.
Precipitation / Solubility |
Oxidation / Reduction
|
On Balancing "Redox Challenges" Oliver G. Ludwig
This paper offers a systematic procedure for handling such equations using nonconventional oxidation numbers and avoiding a lot of mathematics.
Ludwig, Oliver G. J. Chem. Educ. 1996, 73, 507.
Oxidation / Reduction
|
Work Done by a Chemical Reaction Henry Brouwer
The use of the "hot dog clock" has been the focus of discussions in a number of areas of electrochemistry. Included in these have been oxidation-reduction potentials, battery construction, salt bridges, electrolytes, and the concentration of ions in certain foods.
Brouwer, Henry. J. Chem. Educ. 1996, 73, 354.
Electrochemistry |
Food Science |
Oxidation / Reduction |
Electrolytic / Galvanic Cells / Potentials
|
Olfactory Titration John T. Wood and Roberta M. Eddy
The purpose of this experiment is to use unique acid-base indicator--the odor of raw onion--to indicate the end point of the titration of sodium hydroxide with hydrochloric acid. The use of this novel indicator allows the student to detect the completion of the neutralization reaction by olfaction rather than by sight.
Wood, John T.; Eddy, Roberta M. J. Chem. Educ. 1996, 73, 257.
Acids / Bases |
Titration / Volumetric Analysis
|
A Commercial Device Involving the Breathalyzer Test Reaction Kathleen J. Dombrink
The breathalyzer test, formerly used by law-enforcement agencies to determine the percentage blood alcohol in suspected DUI cases, is still used in the device FINAL CALL, which is available commercially. The reaction involves the reduction of chromuim(VI) in the orange dichromate ion, Cr2O72- to the green chromium(III) ion, Cr3+ by ethyl alcohol.
Dombrink, Kathleen J. J. Chem. Educ. 1996, 73, 135.
Applications of Chemistry |
Oxidation / Reduction
|
Improving a Microscale Vitamin C Laboratory Helser, Terry L.
Procedure for increasing the stability of vitamin C samples and titrating dye for titrations.
Helser, Terry L. J. Chem. Educ. 1995, 72, A10.
Titration / Volumetric Analysis |
Vitamins |
Laboratory Management |
Microscale Lab
|
From Christmas Ornament to Glass Electrode Rogério T. da Rocha, Ivano G. R. Gutz, and Claudimir L. do Lago
Instructions and use of a homemade glass electrode for pH measurements/titrations.
Da Rocha, Rogerio T.; Gutz, Ivano G. R.; do Lago, Claudimir L. J. Chem. Educ. 1995, 72, 1135.
Laboratory Equipment / Apparatus |
Electrochemistry |
Titration / Volumetric Analysis |
Ion Selective Electrodes |
Aqueous Solution Chemistry |
Acids / Bases |
Laboratory Management |
pH
|
Redox Challenges: Good Times for Puzzle Fanatics Roland Stout
Three difficult to balance redox equations.
Stout, Roland. J. Chem. Educ. 1995, 72, 1125.
Reactions |
Stoichiometry |
Oxidation / Reduction |
Enrichment / Review Materials
|
Fe(s) + Cu(II)(aq) ----> Fe(II)(aq) + Cu(s): Fifteen Centuries of Search Vladimir Karpenko
Historical development of understanding of the title reaction, particularly erroneous alchemical beliefs.
Karpenko, Vladimir. J. Chem. Educ. 1995, 72, 1095.
Metals |
Enrichment / Review Materials |
Reactions |
Oxidation / Reduction
|
A Dating Analogy for Acid-Base Titration Problems Ronald DeLorenzo
Analogy to help students understand the consequences of concentrating or diluting unknowns before titrating them.
DeLorenzo, Ronald. J. Chem. Educ. 1995, 72, 1011.
Titration / Volumetric Analysis |
Acids / Bases
|
The Effectiveness of Computer-Assissted Learning in the Teaching of Quantitative Volumetric Analysis Skills in a First-Year University Course Carmel McNaught, Heather Grant, Paul Fritze, Janet Barton, Peter McTigue, and Robert Prosser
Study of the effectiveness of a computerized tutorial involving titration-related laboratory procedures at improving the laboratory skills of first-year students with a weak chemistry background.
McNaught, Carmel; Grant, Heather; Fritze, Paul; Barton, Janet; McTigue, Peter; Prosser, Robert. J. Chem. Educ. 1995, 72, 1003.
Quantitative Analysis |
Titration / Volumetric Analysis
|
Synthesis and Characterization of Potassium Tris(oxalato)ferrate(III) Trihydrate: A Spectrophotometric Method of Iron Analysis Richard F. Dallinger
A general chemistry experiment that combines titrimetric, gravimetric, and spectrophotometric analysis in two, three-hour lab periods.
Dallinger, Richard F. J. Chem. Educ. 1995, 72, 936.
Spectroscopy |
Synthesis |
Titration / Volumetric Analysis |
Gravimetric Analysis
|
From Titration Data to Buffer Capacities: A Computer Experiment for the Chemistry Lab or Lecture Roy W. Clark, Gary D. White, Judith M. Bonicamp, and Exum D. Watts
Provides titration curve data that students can plot and analyze using spreadsheets to develop student understanding of pH, derivatives, buffer capacity, and the behavior of dilute buffers; includes sample graphs and analysis.
Clark, Roy W.; White, Gary D.; Bonicamp, Judith M.; Watts, Exum D. J. Chem. Educ. 1995, 72, 746.
Acids / Bases |
pH |
Titration / Volumetric Analysis |
Chemometrics
|
Double Disproportionations M.E. Cardinali, C. Giomini, Ciancarlo Marrosu
Method for balancing a difficult redox reaction.
Cardinali, Mario E.; Giomini, Claudio; Marrosu, Giancarlo. J. Chem. Educ. 1995, 72, 716.
Stoichiometry |
Oxidation / Reduction
|
Making Sparklers: An Introductory Laboratory Experiment Allen Keeney, Christina Walters, and Richard D. Cornelius
Method for producing sparklers to illustrate redox reactions.
Keeney, Allen; Walters, Christina; Cornelius, Richard D. J. Chem. Educ. 1995, 72, 652.
Oxidation / Reduction |
Reactions |
Metals
|
Titration Techniques Jerrold J. Jacobsen, Kelly Houston Jetzer, and Néha Patani, John Zimmerman, and Gerald Zweerink
Laser disk that contains 20 lessons and demonstrations of lab techniques related to titrations.
Jacobsen, J. J.; Jetzer, K. H.; Patani, N.; Zimmerman, J.; Zweerink,G. . J. Chem. Educ. 1995, 72, 612.
Acids / Bases |
Titration / Volumetric Analysis
|
Resistance Measurement as a Tool for Corrosion Studies Singh, N. P.; Gupta, S. C.; Sood, B. R.
Procedure for determining the rate of corrosion by measuring changes in the resistance of a thin wire or strip of metal; sample data and analysis included.
Singh, N. P.; Gupta, S. C.; Sood, B. R. J. Chem. Educ. 1995, 72, 465.
Oxidation / Reduction |
Metals |
Rate Law |
Reactions |
Electrochemistry
|
A Convenient Luminol Demonstration Schechinger, Linda; Waldman, Amy Sue
Simple, inexpensive apparatus for demonstrating the oxidation of luminol.
Schechinger, Linda; Waldman, Amy Sue J. Chem. Educ. 1995, 72, 243.
Laboratory Equipment / Apparatus |
Oxidation / Reduction |
Photochemistry
|
Spreadsheets in General Chemistry: Their Introduction and Application to Complex Titrations Chesick, John P.
167. Time in any course program must be made for instruction in the use of the spreadsheet, and the methodology for doing this continues to be a topic of discussion.
Chesick, John P. J. Chem. Educ. 1994, 71, 934.
Laboratory Computing / Interfacing |
Titration / Volumetric Analysis
|
Vanadium Ions as Visible Electron Carriers in a Redox System Bare, William D.; Resto, Wilfredo
Demonstration using a column to display the four, differently colored, oxidation states of vanadium simultaneously.
Bare, William D.; Resto, Wilfredo J. Chem. Educ. 1994, 71, 692.
Oxidation / Reduction |
Transition Elements |
Metals |
Oxidation State
|
Simulations and Interactive Resources Martin, John S.
12 Simulations and Interactive Resources (SIRs) including Periodic Table Displays, Electron Orbits and Orbitals, Electron Configurations, Barometers and Manometers, Vapor Pressure, Ideal Gas Behavior, Heat Capacity and Heat of Reaction, Approach to Equilibrium, The Law of Chemical Equilibrium, Titration Curves, Electrochemical Cells, and Rate of Reaction.
Martin, John S. J. Chem. Educ. 1994, 71, 667.
Periodicity / Periodic Table |
Atomic Properties / Structure |
Gases |
Calorimetry / Thermochemistry |
Equilibrium |
Titration / Volumetric Analysis |
Electrolytic / Galvanic Cells / Potentials |
Rate Law
|
A Handy Reagent for Testing the Reducing Power of Sugars Sandell, Arvid
Using the reduction of copper(II) as a semi-quantitative test for reducing sugars.
Sandell, Arvid J. Chem. Educ. 1994, 71, 346.
Carbohydrates |
Oxidation / Reduction |
Coordination Compounds
|
Pyrotechnic Reactions Without Oxygen Wright, Stephen W.
Reaction of K3FeF6 with Al and poly(tetrafluoroethylene) with Mg.
Wright, Stephen W. J. Chem. Educ. 1994, 71, 251.
Oxidation / Reduction |
Reactions
|
TITRATE: A Learning Tool for Acid-Base Titrations Ramette, Richard W.
Software that calculates and simulates the plot of a titration curve for any base or acid (up to hexaprotic) or any mixture (up to five substances).
Ramette, Richard W. J. Chem. Educ. 1994, 71, 238.
Acids / Bases |
Titration / Volumetric Analysis |
Aqueous Solution Chemistry
|
Classroom Demonstration of Chromium(VI)/Chromium(III) in the Breathalyzer Test Reaction Jones, Rebecca B.; Dreisbach, Joseph H.
Demonstrating the breathalyzer reaction.
Jones, Rebecca B.; Dreisbach, Joseph H. J. Chem. Educ. 1994, 71, 158.
Nonmajor Courses |
Oxidation State |
Oxidation / Reduction
|
Patriotic Electrolysis of Water DuPre, Donald B.
Producing reversible red, white and blue in a single Petri dish.
DuPre, Donald B. J. Chem. Educ. 1994, 71, 70.
Electrochemistry |
Oxidation / Reduction
|
A low-cost constant-rate buret Hannum, Steven E.
A simple constant-rate delivery system used as a demonstration in general chemistry lab.
Hannum, Steven E. J. Chem. Educ. 1993, 70, 1037.
Titration / Volumetric Analysis
|
A new use for the candle and tumbler myth Peckham, Gavin D.
In the time it takes to complete the popular but lengthy steel-wool experiment, this author proposes an activity that can be done to add an extra dimension to analyzing oxygen content. This combination of "good" and "bad" experiments proves to be a powerful pedagogical tool.
Peckham, Gavin D. J. Chem. Educ. 1993, 70, 1008.
Quantitative Analysis |
Atmospheric Chemistry |
Oxidation / Reduction
|
Determining the metal activity series using a potato porcupine Fortman, John J.; Battino, Rubin
Determining the metal activity series using a potato porcupine.
Fortman, John J.; Battino, Rubin J. Chem. Educ. 1993, 70, 939.
Oxidation / Reduction |
Metals
|
Investigating protective coatings for steel Runyan, Tom; Herrmann, Mary
Learning about corrosion chemistry provides students with authentic inquiry experience as well as an opportunity to learn relevant and applicable content.
Runyan, Tom; Herrmann, Mary J. Chem. Educ. 1993, 70, 843.
Oxidation / Reduction |
Acids / Bases |
Metals |
Applications of Chemistry |
Consumer Chemistry |
Materials Science
|
General treatment of aqueous ionic equilibria using predominance diagrams Vale, J.; Fernandez-Pereira, C.; Alcalde, M.
This paper illustrates the advantage of a unified instructional treatment based on the similarities o equilibria between acid-base and oxidation-reduction reactions that could be used in a general chemistry course.
Vale, J.; Fernandez-Pereira, C.; Alcalde, M. J. Chem. Educ. 1993, 70, 790.
Acids / Bases |
Equilibrium |
Oxidation / Reduction
|
A visual illustration of oxidation numbers and moles: Using balloons to demonstrate moles of electrons Bergquist, Wilbur
Illustrating the connection between moles of electrons and oxidation number.
Bergquist, Wilbur J. Chem. Educ. 1993, 70, 586.
Oxidation State |
Oxidation / Reduction |
Metals
|
The electrician's multimeter in the chemistry teaching laboratory: Part 2: Potentiometry and conductimetry Sevilla, Fortunato, III; Alfonso, Rafael L.; Andres, Roberto T.
Further applications of the multimeter in chemistry laboratories are discussed in this paper: potentiometry, reduction potentials and cell EMF, the Nerst equations, pH measurements, titration, conductimetry, and conduction of solutions.
Sevilla, Fortunato, III; Alfonso, Rafael L.; Andres, Roberto T. J. Chem. Educ. 1993, 70, 580.
Acids / Bases |
Solutions / Solvents |
Titration / Volumetric Analysis |
Electrochemistry |
Laboratory Equipment / Apparatus |
Potentiometry
|
Is This Reaction a Substitution, Oxidation-Reduction, or Transfer? Imyanitov, Naum S.
Author argues that separation of chemical reaction types based on convention do not always follow objective and consistent rules. This leads to confusion among students and artificial borders within the various sub-disciplines in chemistry.
Imyanitov, Naum S. J. Chem. Educ. 1993, 70, 14.
Reactions |
Oxidation / Reduction
|
Gas reactions in plastic bags: Relating laboratory observations to the atomic-molecular model Robinson, Maurice; Barrow, Gordon M.
Carrying out chemical reactions in Ziplock bags to investigate a variety of chemical concepts.
Robinson, Maurice; Barrow, Gordon M. J. Chem. Educ. 1992, 69, 1026.
Kinetic-Molecular Theory |
Gases |
Reactions |
Acids / Bases |
Oxidation / Reduction |
Photochemistry |
Atmospheric Chemistry |
Physical Properties
|
The acid-base package Ramette, Richard W.; Holmes, Jon L.
Software that will calculate theoretical titration curve data and the pH for any mixture of acids and/or bases.
Ramette, Richard W.; Holmes, Jon L. J. Chem. Educ. 1992, 69, 1010.
Acids / Bases |
pH |
Titration / Volumetric Analysis
|
A more environmentally acceptable determination of iron in an ore Byars, Jeffrey; McCreary, Terry W.
The method for titrimetric determination of iron in which zinc is used as the reactant in situ rather that as a Jones reductor, has several advantages over conventional determination of iron.
Byars, Jeffrey; McCreary, Terry W. J. Chem. Educ. 1992, 69, 935.
Oxidation / Reduction |
Quantitative Analysis
|
New source for starch solutions: Biodegradable pellets de Moura, John M.
Convenient way to prepare starch indicator for use in iodine titrations or in "clock" reactions.
de Moura, John M. J. Chem. Educ. 1992, 69, 860.
Carbohydrates |
Titration / Volumetric Analysis
|
Microscale experiments: Dissolved oxygen and chloride determination in water Crosson, Mary; Gibb, Reen
Determining the dissolved oxygen and chloride content of water samples through titrations.
Crosson, Mary; Gibb, Reen J. Chem. Educ. 1992, 69, 830.
Microscale Lab |
Water / Water Chemistry |
Aqueous Solution Chemistry |
Titration / Volumetric Analysis
|
Estimation of carbonate content of base by Gran's method: A semimicroscale experiment. Vesala, Antti.
Carbonate content of a base is determined by titration with HCl using small scale samples and additions.
Vesala, Antti. J. Chem. Educ. 1992, 69, 577.
Quantitative Analysis |
Titration / Volumetric Analysis
|
The pH range of the Mohr titration for chloride ion can be usefully extended to 4-10.5 Finlayson, A. C.
The pH ranges found in textbooks for this titration are misleading because of inadequate explanations for their basis.
Finlayson, A. C. J. Chem. Educ. 1992, 69, 559.
pH |
Titration / Volumetric Analysis |
Quantitative Analysis
|
Frost diagrams: A tool for predicting redox reactions. Birk, James P.; Hocker, Heidi.
A HyperCard stack that provides an easily used format for making redox reaction predictions for one or two elements by comparing slopes of the lines connecting two oxidation states.
Birk, James P.; Hocker, Heidi. J. Chem. Educ. 1992, 69, 509.
Oxidation / Reduction |
Oxidation State
|
The chemical logic of life and the earth's biosphere: A simple, one-diagram outline Ochiai, Ei-Ichiro
This diagram is intended to give a compact overall picture of the chemical logic of life and of the earth's biosphere.
Ochiai, Ei-Ichiro J. Chem. Educ. 1992, 69, 356.
Acids / Bases |
Oxidation / Reduction
|
An MS-DOS microcomputer controlled titration system Stangeland, Leiv Jonn; Anjo, Dennis M.
136. In this experiment the computer is employed to control the addition rate of titrant based on the change in pH of the analyte system.
Stangeland, Leiv Jonn; Anjo, Dennis M. J. Chem. Educ. 1992, 69, 296.
Titration / Volumetric Analysis |
pH |
Laboratory Computing / Interfacing
|
The computer as student: An application of artificial intelligence Birk, James P.
The author describes how the development of computer software to teach about chemical reactivity also provides information about how we should teach several topics in general chemistry.
Birk, James P. J. Chem. Educ. 1992, 69, 294.
Oxidation / Reduction |
Acids / Bases
|
Balancing a chemical equation: What does it mean? Filgueiras, Carlos A
Students were puzzled by the idea that one chemical equation could be balanced in several different ways. This led to a fruitful discussion on how exact a science chemistry really is.
Filgueiras, Carlos A J. Chem. Educ. 1992, 69, 276.
Stoichiometry |
Oxidation / Reduction
|
Algorithm for plotting titration curves (author response). Rodrigues de Moura, Daniel.
Our model, contrary to Jackman's statement, can be applied to redox systems that are pH-dependant.
Rodrigues de Moura, Daniel. J. Chem. Educ. 1992, 69, 257.
pH |
Oxidation / Reduction |
Titration / Volumetric Analysis
|
Algorithm for plotting titration curves. Jackman, Donald C.
de Moura's algorithm for plotting redox titration curves seems to be good for systems that are not dependent on pH or product concentration, but is not applicable to those situations that is student is more likely to encounter.
Jackman, Donald C. J. Chem. Educ. 1992, 69, 257.
Oxidation / Reduction |
Titration / Volumetric Analysis |
pH
|
Cyclic indicator color change by titrant electrogeneration. Stock, John T.
A simple but striking demonstration of coulometric titration.
Stock, John T. J. Chem. Educ. 1992, 69, 253.
Electrochemistry |
Acids / Bases |
Titration / Volumetric Analysis
|
When the barking dog bites the hand that feeds it: A safety caution. Worley, John D.
Plastic gloves should not be used at any point during the barking dog demonstration.
Worley, John D. J. Chem. Educ. 1992, 69, 241.
Oxidation / Reduction
|
Redox equations with an infinite number of balanced solutions Riley, Jeremy; Richmond, Thomas G. R.
Some mathematically minded students prefer to use various algebraic methods to solve oxidation/reduction problems instead of the half-reaction method. This can lead to redox reactions in which the reactants actually yield a family of balanced equations rather than a unique solution.
Riley, Jeremy; Richmond, Thomas G. R. J. Chem. Educ. 1992, 69, 114.
Oxidation / Reduction
|
The bird-scarer (combustion) demo Battino, Rubin; Arehart, James D.; Foot, Neville W.; Stott, James B.
This is a demonstration version of a device used to scare birds with loud noises occurring at regular intervals.
Battino, Rubin; Arehart, James D.; Foot, Neville W.; Stott, James B. J. Chem. Educ. 1992, 69, 64.
Reactions |
Oxidation / Reduction
|
Spreadsheet titration of diprotic acids and bases Breneman, G. L.; Parker, O. J.
133. Bits and pieces, 47. A spreadsheet and chart, set up using Excel, for showing titration curves of any diprotic acid or base is described.
Breneman, G. L.; Parker, O. J. J. Chem. Educ. 1992, 69, 46.
Acids / Bases |
Chemometrics |
Titration / Volumetric Analysis
|
Chem 1 concept builder (Lower, Steve with Instructional Software) Hair, Sally R.
A review of a software package designed for tutorial and drill.
Hair, Sally R. J. Chem. Educ. 1991, 68, A19.
Acids / Bases |
Oxidation / Reduction |
Stoichiometry |
Atomic Properties / Structure
|
A carbonate project introducing students to the chemistry lab Dudek, Emily
A description of a first semester general chemistry laboratory that helps acquaint students with a large variety of chemistry laboratory procedures.
Dudek, Emily J. Chem. Educ. 1991, 68, 948.
Chemometrics |
Gravimetric Analysis |
Titration / Volumetric Analysis |
Separation Science
|
Advanced titration plots using spreadsheet scripting Currie, James O., Jr.; Whiteley, Richard V., Jr.
131. A spreadsheet aids in student understanding of acid/base titration calculations.
Currie, James O., Jr.; Whiteley, Richard V., Jr. J. Chem. Educ. 1991, 68, 923.
Acids / Bases |
Titration / Volumetric Analysis |
pH |
Laboratory Computing / Interfacing |
Equilibrium
|
Recovery of silver from and some uses for waste silver chloride Murphy, J. A.; Ackerman, A. H.; Heeren, J. K.
Procedures for conversion to silver nitrate, using waste AgCl as an oxidizing agent, and electrodepositon experiments.
Murphy, J. A.; Ackerman, A. H.; Heeren, J. K. J. Chem. Educ. 1991, 68, 602.
Reactions |
Oxidation / Reduction |
Electrochemistry
|
Chloride in natural waters: An environmental application of a potentiometric titration Lisensky, George; Reynolds, Kelly.
An environmental application of a potentiometric titration to determine chloride found in fresh water.
Lisensky, George; Reynolds, Kelly. J. Chem. Educ. 1991, 68, 334.
Potentiometry |
Titration / Volumetric Analysis |
Green Chemistry |
Geochemistry |
Quantitative Analysis
|
Teaching photometry with overhead projector experiments Gutz, Ivano G. R.; Angnes, Lucio; Pedrotti, Jairo J.
Description of a photometry demonstration with an overhead projector.
Gutz, Ivano G. R.; Angnes, Lucio; Pedrotti, Jairo J. J. Chem. Educ. 1991, 68, 325.
Potentiometry |
Acids / Bases |
Oxidation / Reduction |
Electrochemistry
|
Chemical equilibrium: III. A few math tricks Gordus, Adon A.
The third article in a series on chemical equilibrium that considers a few math "tricks" useful in equilibrium calculations and approximations.
Gordus, Adon A. J. Chem. Educ. 1991, 68, 291.
Acids / Bases |
Equilibrium |
Chemometrics |
Titration / Volumetric Analysis
|
Redox demonstrations and descriptive chemistry: Part 3. Copper (I)-copper(II) equilibria Ophardt, Charles E.
The unusual redox properties of copper (I) and copper (II) ions explained and illustrated.
Ophardt, Charles E. J. Chem. Educ. 1991, 68, 248.
Descriptive Chemistry |
Oxidation State |
Oxidation / Reduction
|
A titrimetric determination using laser-beam scattering for endpoint determination Brooks, David W.; Lyons, Edward J.
Data from one of four repeated trials of a lecture experiment that determines the stability constant of a silver amine complex.
Brooks, David W.; Lyons, Edward J. J. Chem. Educ. 1991, 68, 155.
Coordination Compounds |
Colloids |
Lasers |
Titration / Volumetric Analysis
|
In praise of copper Tykodi, R. J.
The reactions of copper make impressive lecture demonstrations and worthwhile laboratory activities.
Tykodi, R. J. J. Chem. Educ. 1991, 68, 106.
Reactions |
Oxidation / Reduction
|
A pH-monitoring and control system for teaching laboratories Ibez, Jorge G.; Tavera, Luis; Rodriguez, Alberto; Gomez del Campo, Enrique
The authors describe a simple microcomputer apparatus that can be used to monitor the pH change that occurs during the course of a chemical reaction, to maintain a constant pH in a chemical reactor, and to perform an automated titration.
Ibez, Jorge G.; Tavera, Luis; Rodriguez, Alberto; Gomez del Campo, Enrique J. Chem. Educ. 1990, 67, A74.
pH |
Titration / Volumetric Analysis |
Laboratory Computing / Interfacing
|
Titrations of monoprotic acids with sodium hydroxide contaminated by sodium carbonate (the author replies) Michalowski, Tadeusz
A basic assumption made in the original article does not reflect the most common practical situation; therefore, some of the conclusions can be misleading if taken as general rules.
Michalowski, Tadeusz J. Chem. Educ. 1990, 67, 1072.
Acids / Bases |
Titration / Volumetric Analysis
|
Titrations of monoprotic acids with sodium hydroxide contaminated by sodium carbonate Bombi, G. Giorgio; Macca, Carlo; Michalowski, Tadeusz
A basic assumption made in the original article does not reflect the most common practical situation; therefore, some of the conclusions can be misleading if taken as general rules.
Bombi, G. Giorgio; Macca, Carlo; Michalowski, Tadeusz J. Chem. Educ. 1990, 67, 1072.
Acids / Bases |
Titration / Volumetric Analysis
|
An olfactory indicator for acid-base titrations: A laboratory technique for the visually impaired Flair, Mark N.; Setzer, William N.
Analysis of eugenol, thymol, vanillin, and thiophenol as aromatic indicators for acid-base titrations.
Flair, Mark N.; Setzer, William N. J. Chem. Educ. 1990, 67, 795.
Acids / Bases |
Titration / Volumetric Analysis |
Minorities in Chemistry |
Aromatic Compounds
|
A bromate clock reaction: The formation of purple tris(diphosphato)manganate(III) Rich, Ronald L.; Noyes, Richard M.
Bromate is used to oxidize nearly colorless Mn(II) to a deep purple complex of Mn(III).
Rich, Ronald L.; Noyes, Richard M. J. Chem. Educ. 1990, 67, 606.
Reactions |
Oxidation / Reduction |
Kinetics
|
Reduction of permanganate: A kinetics demonstration for general chemistry Steffel, Margaret J.
Using the reduction of MnO4- to Mn2+ in aqueous solution to demonstrate the four factors that control reaction rates in solution: the natures of the reactants, concentrations of the reactants, temperature, and the presence of a catalyst.
Steffel, Margaret J. J. Chem. Educ. 1990, 67, 598.
Kinetics |
Rate Law |
Catalysis |
Oxidation / Reduction
|
A syllabus for a two-semester chemistry course for health professions (author response) Daly, John M.; Sarquis, Jerry L.
While oxidation-reduction is not given a major heading, it is included in several different places in the syllabus.
Daly, John M.; Sarquis, Jerry L. J. Chem. Educ. 1990, 67, 540.
Nonmajor Courses |
Oxidation / Reduction
|
A syllabus for a two-semester chemistry course for health professions Bosch, E.; Prat, M. D.
The author believes that the main criticism of the proposed program is the lack of a redox section.
Bosch, E.; Prat, M. D. J. Chem. Educ. 1990, 67, 539.
Oxidation / Reduction |
Nonmajor Courses
|
Analysis of organic acids: A freshman laboratory experiment Griswold, John R.; Rauner, Richard A.
In this experiment students select unknown carboxylic acids, determine their melting points, and investigate their solubility behavior in water and ethanol.
Griswold, John R.; Rauner, Richard A. J. Chem. Educ. 1990, 67, 516.
Acids / Bases |
Titration / Volumetric Analysis |
Stoichiometry |
Precipitation / Solubility
|
The pH of any mixture of monoprotic acids and bases Herman, D. P.; Booth, K. K.; Parker, O. J.; Breneman, G. L.
115. Bits and pieces, 44. The pH of any mixture of monoprotic weak and strong acids and bases can be calculated. A curve can also be plotted for the titration of the mixture by any monoportic weak or strong acid or base.
Herman, D. P.; Booth, K. K.; Parker, O. J.; Breneman, G. L. J. Chem. Educ. 1990, 67, 501.
Acids / Bases |
Titration / Volumetric Analysis |
pH
|
REDOX: A Tutorial on REDuction/Oxidation Equations Davenport, Derek A.; Groves, Paul; Jensen, Dale L.
This suite of programs provides a computer-based tutorial on the subjects of oxidation numbers and balancing redox equations.
Davenport, Derek A.; Groves, Paul; Jensen, Dale L. J. Chem. Educ. 1990, 67, 498.
Oxidation / Reduction |
Enrichment / Review Materials
|
Redox reactions and the electropotential axis Vella, Alfred J.
An introductory discussion should not get bogged down with the problems of representing cells by standard cell diagrams and notations and instead should concentrate on the chemistry of galvanic cells and the use of these cells in describing the concepts of redox chemistry.
Vella, Alfred J. J. Chem. Educ. 1990, 67, 479.
Oxidation / Reduction |
Electrolytic / Galvanic Cells / Potentials |
Electrochemistry
|
Wet labs, computers, and spreadsheets Durham, Bill
The following is a description of some commonly encountered experiments that have been modified for computerized data acquisition.
Durham, Bill J. Chem. Educ. 1990, 67, 416.
Laboratory Computing / Interfacing |
Nuclear / Radiochemistry |
Titration / Volumetric Analysis |
Calorimetry / Thermochemistry |
Kinetics |
Electrochemistry
|
Squaric acid: A workshop for high school chemistry teachers Gesser, H. D.; Baldwin, W. G.; Hickling, G. G.
The authors feel that the greatest value from a workshop is obtained when the workshop has a practical focus, with participating teachers experiencing both an experimental challenge, such as they often put to their pupils, and an opportunity to upgrade their knowledge of modern laboratory procedures.
Gesser, H. D.; Baldwin, W. G.; Hickling, G. G. J. Chem. Educ. 1990, 67, 388.
Professional Development |
Titration / Volumetric Analysis
|
Oxidation-reduction in blood analysis: Demonstrating the reaction in a Breathalyzer Anderson, John M.
The principle of a Breathalyzer involves the oxidation of alcohol in expired breath by a solution of potassium dichromate.
Anderson, John M. J. Chem. Educ. 1990, 67, 263.
Applications of Chemistry |
Oxidation / Reduction
|
On how to simulate potentiometric titration curves without making any approximation de Moura, Daniel Rodrigues
The paper describes how to simulate the titration curve without making any approximation and also without solving the polynomial expression and even without necessarily using a computer.
de Moura, Daniel Rodrigues J. Chem. Educ. 1990, 67, 226.
Potentiometry |
Titration / Volumetric Analysis
|
Oxidation of cysteine to cystine using hydrogen peroxide Hill, John W.; Coy, Robert B.; Lewandowski, Peter E.
This synthesis has several advantages as an undergraduate laboratory exercise.
Hill, John W.; Coy, Robert B.; Lewandowski, Peter E. J. Chem. Educ. 1990, 67, 172.
Amino Acids |
Oxidation / Reduction
|
In praise of thiosulfate Tykodi, R. J.
The reactions of thiosulfate make impressive lecture demonstrations and worthwhile laboratory experiments.
Tykodi, R. J. J. Chem. Educ. 1990, 67, 146.
Acids / Bases |
Precipitation / Solubility |
Oxidation / Reduction |
Aqueous Solution Chemistry |
Stoichiometry
|
Chemical Reactions, Reactions in Aqueous Solution, and Oxidation Reduction Reactions, Review II (Weyh, J. A.; Crook, J. R.; Hauge, L. N.) Coleman, William F.
Programs intended to provide students with drill and practice in equation writing (including formula writing), equation balancing, and reaction predicting.
Coleman, William F. J. Chem. Educ. 1989, 66, A172.
Reactions |
Aqueous Solution Chemistry |
Oxidation / Reduction |
Enrichment / Review Materials
|
Chemical Reactions, Reactions in Aqueous Solution, and Oxidation Reduction Reactions, Review I (Weyh, J. A.; Crook, J. R.; Hauge, L. N.) Balahura, Robert J.
Programs intended to provide students with drill and practice in equation writing (including formula writing), equation balancing, and reaction predicting.
Balahura, Robert J. J. Chem. Educ. 1989, 66, A172.
Reactions |
Aqueous Solution Chemistry |
Oxidation / Reduction |
Enrichment / Review Materials
|
What chemistry do our students need to learn? Hawkes, Stephen J.
Suggested topics of importance to chemistry nonmajors.
Hawkes, Stephen J. J. Chem. Educ. 1989, 66, 831.
Nonmajor Courses |
Oxidation / Reduction |
Geochemistry |
Atmospheric Chemistry |
Brønsted-Lowry Acids / Bases
|
Enhancement of visual titration endpoints Williams, Howard P.; Howell, J. Emory; Russell, Joseph L.
Using white styrofoam cups as a titration vessel.
Williams, Howard P.; Howell, J. Emory; Russell, Joseph L. J. Chem. Educ. 1989, 66, 680.
Titration / Volumetric Analysis |
Acids / Bases
|
Substitution of volumetric for gravimetric methods and other improvements in a new molar volume-molar mass experiment Bedenbaugh, John H.; Bedenbaugh, Angela O.; Heard, Thomas S.
Improvements on an earlier procedure for the quantitative decomposition of 3% hydrogen peroxide to oxygen and water.
Bedenbaugh, John H.; Bedenbaugh, Angela O.; Heard, Thomas S. J. Chem. Educ. 1989, 66, 679.
Gravimetric Analysis |
Enzymes |
Stoichiometry |
Titration / Volumetric Analysis
|
Simple removal of buret bubbles Austin, David J.
Suggestion for removing bubbles from below the buret's stopcock.
Austin, David J. J. Chem. Educ. 1989, 66, 514.
Laboratory Management |
Titration / Volumetric Analysis
|
A laboratory procedure for the reduction of chromium(VI) to chromium(III) Lunn, George; Sansone, Eric B.
The authors describe work aimed at reducing the hazards associated with the disposal of Cr(VI) compounds.
Lunn, George; Sansone, Eric B. J. Chem. Educ. 1989, 66, 443.
Oxidation / Reduction |
Laboratory Management
|
Interaction between scientific research and chemical education: Development of a corrosion experiment Higa, Claudio O.; da Costa, Sylvia L. F. A.; Agostinho, Silvia M. L.
This work presents the results of an investigation of the effect of the corrosion inhibitor benzotriazole on copper corrosion through weight-loss experiments.
Higa, Claudio O.; da Costa, Sylvia L. F. A.; Agostinho, Silvia M. L. J. Chem. Educ. 1989, 66, 441.
Oxidation / Reduction
|
Chemically induced pulsations of interfaces: The mercury beating heart Avnir, David
When an iron needle just touches a mercury drop submerged in a pool of an acidic solution of an oxidizer, it pulsates rapidly in a mode that resembles a beating heart.
Avnir, David J. Chem. Educ. 1989, 66, 211.
Oxidation / Reduction
|
Chemical principles for the introductory laboratory, CHM 384 (Johnson, James F.) Wegner, Carol
A comprehensive review of the title program which overviews basic techniques and concepts presented in introductory laboratory courses. Topics include: titration, equilibrium, Ksp, solubility, Beer's law, coordination complexes and first-order rates of reaction.
Wegner, Carol J. Chem. Educ. 1988, 65, A47.
Acids / Bases |
Titration / Volumetric Analysis |
UV-Vis Spectroscopy |
Equilibrium |
Solutions / Solvents |
Coordination Compounds |
Kinetics
|
E.M.E. Titration lab (Shelton, Roger) Ogata, Philip H.
A review of an interactive software program that executes a lab simulation allowing students to master the titration process while helping students understand symbols and empirical formulas and sharpening students' data collection skills.
Ogata, Philip H. J. Chem. Educ. 1988, 65, A23.
Titration / Volumetric Analysis
|
Oxidation states of manganese Kolb, Doris
This demonstration illustrates oxidation states of manganese.
Kolb, Doris J. Chem. Educ. 1988, 65, 1004.
Oxidation State |
Oxidation / Reduction |
Metals |
Transition Elements
|
Determination of the effect of various modes of cooking on the vitamin C content of a common food, green pepper: An introductory biochemistry experiment Johnson, Eric R.
A great laboratory experiment that examines the effects of baking, boiling, steaming, and microwaving a green pepper on the pepper's nutritional level.
Johnson, Eric R. J. Chem. Educ. 1988, 65, 926.
Nutrition |
Titration / Volumetric Analysis |
Vitamins |
Food Science |
Applications of Chemistry
|
Experimental work with tin(II) chloride in a high school Sanchez, Manuela Martin
The author describes a final-project performed by students that integrates concepts of hydrolysis, Le Chatelier's principle, and electrolysis. Students seek answers to questions such as: "What reactions were involved; why is an aqueous solution of SnCl2 acidic; how can elemental tin be recovered from the system?"
Sanchez, Manuela Martin J. Chem. Educ. 1988, 65, 898.
Separation Science |
Electrochemistry |
Electrolytic / Galvanic Cells / Potentials |
Equilibrium |
Oxidation / Reduction
|
Nuclear waste glass, and the Fe2+/Fe3+ ratio Fanning, James C.; Hunter, R. Todd
These authors present a chemical problem of current interest that can be used for pedagogical purposes.
Fanning, James C.; Hunter, R. Todd J. Chem. Educ. 1988, 65, 888.
Applications of Chemistry |
Consumer Chemistry |
Titration / Volumetric Analysis |
Oxidation State |
Nuclear / Radiochemistry |
Green Chemistry |
Chromatography |
Spectroscopy
|
Acid pickling with amines: an experiment in applied chemistry for high school or freshman chemistry Spears, Steven G.; Spears, Larry G.; Spears, Joycelyn C.
A brief description of the removal of corrosion products and millscale from the surface of ferrous metals by acid pickling.
Spears, Steven G.; Spears, Larry G.; Spears, Joycelyn C. J. Chem. Educ. 1988, 65, 457.
Oxidation / Reduction |
Acids / Bases |
Amines / Ammonium Compounds |
Electrochemistry
|
Manganese color reactions Pearson, Robert S.
Taming 'disproportionation' with a colorful demonstration.
Pearson, Robert S. J. Chem. Educ. 1988, 65, 451.
Oxidation / Reduction |
Descriptive Chemistry |
Oxidation State
|
Test tube geology: A slowly developing redox system for class study Cortez, James A.; Powell, Dick; Mellon, Ed.
To capture the imagination of advanced high school chemistry students, this simply constructed experiment can reinforce their proper observation and recording techniques while getting them to think about the chemical techniques and concepts presented in their previous courses.
Cortez, James A.; Powell, Dick; Mellon, Ed. J. Chem. Educ. 1988, 65, 350.
Geochemistry |
Oxidation / Reduction
|
Rating antacids in Consumer Reports Martin, Geoffrey
This article presents a Consumer Reports study on antacid effectiveness via titration.
Martin, Geoffrey J. Chem. Educ. 1988, 65, 214.
Acids / Bases |
Titration / Volumetric Analysis |
Consumer Chemistry |
Drugs / Pharmaceuticals |
Food Science
|
Potentiometric titration of acidic and basic compounds in household cleaners Lieu, Van T.; Kalbus, Gene E.
The potentiometric titration of commercial household cleaners can be used in student laboratories in freshman, analytical, and physical chemistry courses. It can be used for analysis of household cleaners with either one or two component systems, or it can be used for the determination of the dissociation constant.
Lieu, Van T.; Kalbus, Gene E. J. Chem. Educ. 1988, 65, 184.
Acids / Bases |
Potentiometry |
Consumer Chemistry |
Titration / Volumetric Analysis |
Equilibrium |
Quantitative Analysis
|
Iron analysis by redox titration: A general chemistry experiment Kaufman, Samuel; Devoe, Howard
The authors have devised a simplified redox method for total iron analysis suitable for execution in a three-hour laboratory period by general chemistry students.
Kaufman, Samuel; Devoe, Howard J. Chem. Educ. 1988, 65, 183.
Oxidation / Reduction |
Titration / Volumetric Analysis |
Quantitative Analysis
|
The titration project Kilner, Cary
Titration labs are able to capture student interest and thus deserve more than the usual cursory introduction in beginning chemistry courses. This author develops a long, more in-depth titration project to take advantage of student interest in this lab technique.
Kilner, Cary J. Chem. Educ. 1988, 65, 80.
Titration / Volumetric Analysis
|
Oxidation numbers and their limitations Woolf, A. A.
An in-depth look at oxidation numbers of various elements in a number of different compounds.
Woolf, A. A. J. Chem. Educ. 1988, 65, 45.
Organometallics |
Oxidation State |
Oxidation / Reduction
|
Computer-Assisted Blackboard (Soltzberg, L. J.) Kruger, J. D.
8-disk set of programs (Apple II) designed to help a lecturer illustrate gas laws, the Rutherford atomic model, quantization in a Bohr atom, wave-functions and orbitals, heat and changes in state, kinetics and simple reaction mechanisms, equilibrium, acid-base reactions, and titrations.
Kruger, J. D. J. Chem. Educ. 1987, 64, A135.
Acids / Bases |
Gases |
Atomic Properties / Structure |
Phases / Phase Transitions / Diagrams |
Kinetics |
Mechanisms of Reactions |
Equilibrium |
Titration / Volumetric Analysis
|
Chem Lab Simulations 1: Titrations and Chem Lab Simulations 2: Ideal Gas Law (Gelder, John) Zemke, Warren T.
Computer programs intended to serve as introductions for students before actual experimentation in the laboratory.
Zemke, Warren T. J. Chem. Educ. 1987, 64, A57.
Titration / Volumetric Analysis |
Gases |
Enrichment / Review Materials
|
Reaction stoichiometry and suitable "coordinate systems" Tykodi, R. J.
Methods for dealing with problems involving reactions stoichiometry: unitize and scale up, factor-label procedure, de Donder ratios, and titration relations.
Tykodi, R. J. J. Chem. Educ. 1987, 64, 958.
Stoichiometry |
Titration / Volumetric Analysis |
Chemometrics
|
A convenient demonstration of combustion and explosion Fenster, Ariel E.; Harpp, David N.; Schwarcz, Joseph A.
Demonstrating the correct molar ratio between propane and oxygen.
Fenster, Ariel E.; Harpp, David N.; Schwarcz, Joseph A. J. Chem. Educ. 1987, 64, 894.
Stoichiometry |
Alkanes / Cycloalkanes |
Oxidation / Reduction
|
Preparation of lead compounds: An exercise in applied chemistry Laing, Michael; Williams-Wynn, David; Suhramoney, Saroj
Uses and synthesis of Pb(NO3)2, PbO2, PbCrO4, PbS, PbO, lead carbonate, lead acetate, and lead metal itself.
Laing, Michael; Williams-Wynn, David; Suhramoney, Saroj J. Chem. Educ. 1987, 64, 811.
Synthesis |
Metals |
Oxidation / Reduction |
Oxidation State |
Reactions |
Descriptive Chemistry
|
Redox demonstrations and descriptive chemistry: Part 2. Halogens Ophardt, Charles E.
Oxidation states of bromine and iodine.
Ophardt, Charles E. J. Chem. Educ. 1987, 64, 807.
Oxidation / Reduction |
Descriptive Chemistry |
Oxidation State
|
Redox demonstrations and descriptive chemistry: Part 1. Metals Ophardt, Charles E.
The oxidation states of iron, tin, and mercury.
Ophardt, Charles E. J. Chem. Educ. 1987, 64, 716.
Metals |
Descriptive Chemistry |
Oxidation / Reduction |
Oxidation State
|
The stepwise reduction of permanganate in alkaline conditions: A lecture demonstration Ruoff, Peter
Demonstrates the +VII, +VI, +V, and +IV oxidation states of manganese and their characteristic colors.
Ruoff, Peter J. Chem. Educ. 1987, 64, 624.
Oxidation / Reduction |
Oxidation State
|
Computer programming in general chemistry Breneman, G. L.; Parker, O. J.
84. Programming computers to solve problems as an integral part of the general chemistry course.
Breneman, G. L.; Parker, O. J. J. Chem. Educ. 1987, 64, 584.
Titration / Volumetric Analysis |
Equilibrium
|
Statistical evaluation of class data for two buret readings Gordus, Adon A.
Data that serve to illustrate both random and systematic errors in measurements characteristic of titrations.
Gordus, Adon A. J. Chem. Educ. 1987, 64, 376.
Chemometrics |
Titration / Volumetric Analysis
|
Introduction to overhead projector demonstrations Kolb, Doris
General suggestions for using the overhead projector and 21 demonstrations. [Debut]
Kolb, Doris J. Chem. Educ. 1987, 64, 348.
Rate Law |
Reactions |
Catalysis |
Equilibrium |
Transition Elements |
Metals |
Oxidation / Reduction |
Acids / Bases
|
Annotating reaction equations Tykodi, R. J.
Annotating aqueous solution reactions fosters recognition of the fundamental reaction categories; ready recognition of a reaction type is the first step toward understanding the "whys and wherefores" inherent in the reaction.
Tykodi, R. J. J. Chem. Educ. 1987, 64, 243.
Aqueous Solution Chemistry |
Reactions |
Acids / Bases |
Gases |
Precipitation / Solubility |
Oxidation / Reduction
|
Hands-on versus computer simulation methods in chemistry Bourque, Donald R.; Carlson, Gaylen R.
Procedure, results, conclusions, and implications of a study that compares the effectiveness of a hands-on approach versus computer simulations in the same chemistry topics.
Bourque, Donald R.; Carlson, Gaylen R. J. Chem. Educ. 1987, 64, 232.
Acids / Bases |
Titration / Volumetric Analysis |
Stoichiometry
|
The science and magic of chemistry: A learning cycle laboratory on oxidation-reduction Silberman, Robert G.; Zipp, Arden P.
This article reports the details of an experiment that can be helpful in developing the topic of oxidation-reduction using the learning cycle.
Silberman, Robert G.; Zipp, Arden P. J. Chem. Educ. 1986, 63, 1098.
Learning Theories |
Oxidation / Reduction
|
Electrodeposition of nickel on copper Manjkow, Joseph; Levine, Dana
In the classroom, one can demonstrate electroplating by the simple, fast, inexpensive, and visually interesting reaction between nickel ions and copper metal.
Manjkow, Joseph; Levine, Dana J. Chem. Educ. 1986, 63, 809.
Electrochemistry |
Electrolytic / Galvanic Cells / Potentials |
Oxidation / Reduction
|
Spectrophotometric titration of a mixture of calcium and magnesium Fulton, Robert; Ross, Michael; Schroeder, Karl
Because the conditions chosen for the titration are not well suited to visual endpoints, students become aware of the unique advantage of spectrophotometric titrations.
Fulton, Robert; Ross, Michael; Schroeder, Karl J. Chem. Educ. 1986, 63, 721.
UV-Vis Spectroscopy |
Coordination Compounds |
Titration / Volumetric Analysis
|
Simple method for determination of oxidation numbers of atoms in compounds Kauffman, Joel M.
Some oxidation numbers are hard to get because the student does not have an easy method of obtaining them. To alleviate this problem, the author presents a "Simple method for determination of oxidation numbers of atoms in compounds".
Kauffman, Joel M. J. Chem. Educ. 1986, 63, 474.
Oxidation / Reduction |
Oxidation State
|
An introductory laboratory exercise for acids and bases Miller, Richard; Silberman, Robert
The authors have used this exercise as an introduction to acid-base chemistry before they do any acid-base titrations in the laboratory.
Miller, Richard; Silberman, Robert J. Chem. Educ. 1986, 63, 447.
Titration / Volumetric Analysis |
Acids / Bases
|
Thermodynamics and reactions in the dry way Tykodi, Ralph J.
In dealing with reactions in the dry way, we can actually "see" in detail the workings of the thermodynamic machinery responsible for moving the reaction in the spontaneous direction. This note presents ideas at the general chemistry level.
Tykodi, Ralph J. J. Chem. Educ. 1986, 63, 107.
Thermodynamics |
Oxidation / Reduction
|
TRS-80 Chemistry Lab, Volume 1, Review II (Hallgren, Richard C.) Beck, James D.
Programs covering the kinetic theory, Charles' law, Boyle' law, titration, and solubility.
Beck, James D. J. Chem. Educ. 1985, 62, A106.
Kinetic-Molecular Theory |
Gases |
Titration / Volumetric Analysis |
Precipitation / Solubility
|
TRS-80 Chemistry Lab, Volume 1, Review I (Hallgren, Richard C.) Rowe, Frederick J.
Programs covering the kinetic theory, Charles' law, Boyle' law, titration, and solubility.
Rowe, Frederick J. J. Chem. Educ. 1985, 62, A105.
Kinetic-Molecular Theory |
Gases |
Titration / Volumetric Analysis |
Precipitation / Solubility
|
New stoichiometry for copper dissolution in nitric acid El-Cheikh, F. M.; Khalil, S. A.; El-Manguch, M. A.; Omar, Hadi A.
NO2 does not appear to be a primary product in the oxidation of copper metal by nitric acid.
El-Cheikh, F. M.; Khalil, S. A.; El-Manguch, M. A.; Omar, Hadi A. J. Chem. Educ. 1985, 62, 761.
Reactions |
Stoichiometry |
Oxidation / Reduction
|
Laboratory simulations by computer-driven laser videodiscs Brooks, David W.; Tipton, Thomas J.; Lyons, Edwards J.
Simulating a titration on a videodisc.
Brooks, David W.; Tipton, Thomas J.; Lyons, Edwards J. J. Chem. Educ. 1985, 62, 514.
Titration / Volumetric Analysis
|
A different view of using titrimetric data Castillo S., Carlos
Using titration data to obtain the dissociation constant of the acid under consideration.
Castillo S., Carlos J. Chem. Educ. 1985, 62, 443.
Acids / Bases |
Titration / Volumetric Analysis |
Quantitative Analysis |
Aqueous Solution Chemistry
|
Estimating the one electron reduction potential for vanadium (V) by chemical techniques: An experiment for general chemistry Wentworth, R. A. D.
Procedure requires no electrochemical equipment because the method depends solely upon observations of the spontaneity of the reactions of V(V) with a series of potential reducing agents and V(IV) with a series of potential oxidizing agents.
Wentworth, R. A. D. J. Chem. Educ. 1985, 62, 440.
Oxidation State |
Oxidation / Reduction |
Electrochemistry
|
Electrochemical errors DeLorenzo, Ron
Ten examples of the unexpected consequences that have resulted from ignorance regarding electrochemistry.
DeLorenzo, Ron J. Chem. Educ. 1985, 62, 424.
Electrochemistry |
Consumer Chemistry |
Applications of Chemistry |
Oxidation / Reduction
|
Drug stabilization against oxidative degradation Akers, Michael J.
Describes the process of oxidation and ways in which pharmaceutical preparations can be protected from oxidative degredation.
Akers, Michael J. J. Chem. Educ. 1985, 62, 325.
Drugs / Pharmaceuticals |
Oxidation / Reduction |
Medicinal Chemistry |
Nonmajor Courses
|
Acid rain analysis by standard addition titration Ophardt, Charles E.
A simple standard addition titration method for determining the acidity of a rain or snow sample.
Ophardt, Charles E. J. Chem. Educ. 1985, 62, 257.
Titration / Volumetric Analysis |
Atmospheric Chemistry |
Acids / Bases |
Qualitative Analysis
|
Colorblindness and titrations with visual indicators Diehl, Harvey; Johnson, Dennis C.; Markuszewski, Richard; Moore, Robert M.
Discussion and investigation of the problem of colorblindness in determining the endpoints of titrations.
Diehl, Harvey; Johnson, Dennis C.; Markuszewski, Richard; Moore, Robert M. J. Chem. Educ. 1985, 62, 255.
Minorities in Chemistry |
Titration / Volumetric Analysis |
Quantitative Analysis |
Acids / Bases
|
Titrator, Review II (Dice, David D.) Drake, Gordon P.
Program that allows the user to simulate the titration of either a strong or weak acid with a strong base.
Drake, Gordon P. J. Chem. Educ. 1984, 61, A273.
Acids / Bases |
Titration / Volumetric Analysis
|
Titrator, Review I (Dice, David D.) Hill, Sister Mary Mechtilde, RSM
Program that allows the user to simulate the titration of either a strong or weak acid with a strong base.
Hill, Sister Mary Mechtilde, RSM J. Chem. Educ. 1984, 61, A273.
Acids / Bases |
Titration / Volumetric Analysis
|
Preparation and analysis of potassium tris(oxalato)ferrate(III)trihydrate: A general chemistry experiment Olmsted, John, III
The analysis of this compound combines gravimetric and titrimeric methods and includes a unique and colorful photoredox reaction.
Olmsted, John, III J. Chem. Educ. 1984, 61, 1098.
Synthesis |
Photochemistry |
Oxidation / Reduction |
Gravimetric Analysis |
Titration / Volumetric Analysis
|
Iodine clock reaction mechanisms Lambert, Jack L.; Fina, Gary T.
Outlines the mechanism for the simple iodine clock reaction and the "Old Nassau" modification.
Lambert, Jack L.; Fina, Gary T. J. Chem. Educ. 1984, 61, 1037.
Mechanisms of Reactions |
Reactions |
Kinetics |
Oxidation / Reduction
|
The preparation of acid-base titration curves McClendon, Michael
A simple technique for generating mechanically plotted titration curves using an electron pH meter and a low-voltage chart recorder.
McClendon, Michael J. Chem. Educ. 1984, 61, 1022.
Acids / Bases |
Titration / Volumetric Analysis |
Laboratory Equipment / Apparatus |
Quantitative Analysis
|
How to get the most from the dichromate volcano demonstration: Aluminothermy Trogler, William C.
Reducing the green ash produced by the dichromate volcano (Cr2O3) with aluminum in a thermite-like display.
Trogler, William C. J. Chem. Educ. 1984, 61, 908.
Reactions |
Oxidation / Reduction
|
The extraction of gold and its simulation with copper Bradley, J. D.; Brand, M.; Louli, J. A. M.
The simulation of the extraction of gold by the use of its analog, copper, makes it possible to capitalize on the glamor of gold without sacrificing any chemical principles.
Bradley, J. D.; Brand, M.; Louli, J. A. M. J. Chem. Educ. 1984, 61, 634.
Separation Science |
Metallurgy |
Industrial Chemistry |
Applications of Chemistry |
Oxidation / Reduction |
Metals
|
Note to: method for balancing redox reactions containing hydroxyl ions Stark, Franz M.
A much simpler way of balancing the equations presented.
Stark, Franz M. J. Chem. Educ. 1984, 61, 476.
Stoichiometry |
Oxidation / Reduction
|
Metal-ligand complexes-a calculation challenge Ramette, R. W.
The purpose of this paper is to illustrate one of the most important experimental methods for studying complex equilibria and to present synthetic data as a challenge to the many sophisticated calculation procedure that enjoy various degrees of loyalty around the world.
Ramette, R. W. J. Chem. Educ. 1983, 60, 946.
Equilibrium |
Metals |
Electrochemistry |
Oxidation / Reduction |
Coordination Compounds
|
Determination of ammonia in household cleaners: an instrumental analysis experiment Graham, Richard C.; DePew, Steven
This popular experiment describes a procedure that is easily modified to determine quantitatively such analytes as ammonia in solution.
Graham, Richard C.; DePew, Steven J. Chem. Educ. 1983, 60, 765.
Quantitative Analysis |
Titration / Volumetric Analysis |
Acids / Bases |
pH |
Consumer Chemistry |
Stoichiometry |
Solutions / Solvents
|
Dyeing of anodized aluminum Grotz, Leonard C.
Anodization of Al is widely practiced in industry to improve the corrosion resistance of articles made of aluminum.
Grotz, Leonard C. J. Chem. Educ. 1983, 60, 763.
Industrial Chemistry |
Oxidation / Reduction |
Metals |
Dyes / Pigments |
Applications of Chemistry
|
Hydrogen peroxide in cleansing antiseptics Worley, John D.
The author shares a procedure for determining peroxide content by measuring the volume of oxygen released when the peroxide was oxidized by permanganate.
Worley, John D. J. Chem. Educ. 1983, 60, 678.
Oxidation / Reduction
|
Indigo Fernelius, W. Conard; Renfrew, Edgar E.
A brief history of the uses and origins of indigo as well as a look at the molecular structure of this molecule.
Fernelius, W. Conard; Renfrew, Edgar E. J. Chem. Educ. 1983, 60, 633.
Dyes / Pigments |
Heterocycles |
Oxidation / Reduction |
Reactions
|
Determination of phosphoric acid in cola beverages: a colorimetric and pH titration experiment for general chemistry Murphy, Joe
Two techniques are compared so that students gain an appreciation for the greater sensitivity and selectivity of colorimetric compared to titrimetric methods of analysis.
Murphy, Joe J. Chem. Educ. 1983, 60, 420.
Titration / Volumetric Analysis |
Instrumental Methods |
Acids / Bases |
pH |
Consumer Chemistry
|
Titration calculations- a problem-solving approach Waddling, Robin E. L.
This author shares a strategy for helping students who might be struggling with understanding how to calculate and understand titration data.
Waddling, Robin E. L. J. Chem. Educ. 1983, 60, 230.
Acids / Bases |
Titration / Volumetric Analysis |
Chemometrics
|
A tutorial program for pH calculation Palmer, Glenn E.
37. Bits and pieces, 14. These authors describe a calculator program that can be used to help students drill pH calculations.
Palmer, Glenn E. J. Chem. Educ. 1983, 60, 101.
pH |
Titration / Volumetric Analysis
|
Wood ash analysis: An experiment for introductory courses Guenther, William B.
Determination of potassium carbonate in wood ashes with a titer method to allow use by students without knowledge of molarity-volume-mole calculations.
Guenther, William B. J. Chem. Educ. 1982, 59, 1047.
Titration / Volumetric Analysis |
Quantitative Analysis
|
Oxidation by Mn207: An impressive demonstration of the powerful oxidizing property of dimanganeseheptoxide Koch, Klaus R.
Demonstrates the formation of Mn2O7 and its powerful oxidation of simple alcohols.
Koch, Klaus R. J. Chem. Educ. 1982, 59, 973.
Oxidation / Reduction |
Oxidation State
|
Reduction potentials and hydrogen overvoltage: An overhead projector demonstration Ramette, Richard W.
Relates the scale of standard reduction potentials to the observed behavior of metals in their reactions with hydrogen ion to produce hydrogen gas.
Ramette, Richard W. J. Chem. Educ. 1982, 59, 866.
Electrochemistry |
Metals |
Oxidation / Reduction
|
The titration of air with nitric oxide: An application of Gay-Lussac's law of combining volumes in a general chemistry experiment Everett, Kenneth G.
Gay-Lussac's law of combining volumes is demonstrated through the reaction between NO and the oxygen in air.
Everett, Kenneth G. J. Chem. Educ. 1982, 59, 802.
Titration / Volumetric Analysis |
Atmospheric Chemistry |
Gases
|
Spontaneous combustion of familiar substances in chlorine Briggs, Thomas S.
Reacting chlorine generated from liquid bleach with red phosphorus (from a match book) and iron from steel wool.
Briggs, Thomas S. J. Chem. Educ. 1982, 59, 788.
Reactions |
Oxidation / Reduction
|
Some tungsten oxidation-reduction chemistry: A paint pot titration Pickering, Miles; Monts, David L.
Mild reducing agents reduce WO3 to a nonstoichiometric blue oxide, "mineral blue," whose approximate formula is WO2.2-3.0.
Pickering, Miles; Monts, David L. J. Chem. Educ. 1982, 59, 693.
Titration / Volumetric Analysis |
Oxidation / Reduction |
Stoichiometry
|
Demonstration of electrochemical cell properties by a simple, colorful oxidation-reduction experiment Hendricks, Lloyd J.; Williams, John T.
The color of a solution close to an electrode is changed from that of the bulk solution to either of two contrasting colors, depending on whether the electrode reaction is a reduction or oxidation.
Hendricks, Lloyd J.; Williams, John T. J. Chem. Educ. 1982, 59, 586.
Electrochemistry |
Oxidation / Reduction
|
A unified approach to the study of chemical reactions in freshman chemistry Cassen, T.; DuBois, Thomas D.
An approach that aims to provide students with the background that will enable them to make reasonable predictions as to the likely products of a chemical reaction.
Cassen, T.; DuBois, Thomas D. J. Chem. Educ. 1982, 59, 377.
Reactions |
Atomic Properties / Structure |
Oxidation State |
Oxidation / Reduction |
Aqueous Solution Chemistry |
Periodicity / Periodic Table
|
Computer applications in the freshman laboratory Palmer, Glenn E.
The objectives of the computer applications described in this note are: 1) practical experience in the application of the concept of logical sequence and deduction in a chemical context and 2) closely supervised practice in the techniques and applications of volumetric analysis.
Palmer, Glenn E. J. Chem. Educ. 1981, 58, 995.
Titration / Volumetric Analysis
|
Another approach to titration curves: Which is the dependent variable? Willis, Christropher J.
In this paper, an approach to titration curves is described which eliminates common stumbling blocks in achieving student understanding.
Willis, Christropher J. J. Chem. Educ. 1981, 58, 659.
Quantitative Analysis |
Titration / Volumetric Analysis
|
Oxidation and reduction White, Alvan D.
A simple visual analogy of oxidation and reduction.
White, Alvan D. J. Chem. Educ. 1981, 58, 645.
Oxidation / Reduction
|
Detection of carbon monoxide in tobacco smoke using molybdosilicate Feinstein, H. I.
This carbon monoxide detector was first developed during WWII: it is simple, rapid, and extremely sensitive.
Feinstein, H. I. J. Chem. Educ. 1981, 58, 633.
Oxidation / Reduction |
Applications of Chemistry |
Metals |
Coordination Compounds
|
Theory and practical use of an hydrogen electrode in aqueous-organic media Letellier, P.; Millot, F.; Baffier, N.; Combes, R.
These authors make a case for a greater use of hydrogen electrodes for acidity measurements in student laboratory courses.
Letellier, P.; Millot, F.; Baffier, N.; Combes, R. J. Chem. Educ. 1981, 58, 576.
Acids / Bases |
Electrochemistry |
Oxidation / Reduction
|
Soil analysis for high school chemistry students Eisenmann, Mary A.
Students examine the solubility of nitrate ions, the insolubility of iron hydroxide and iron carbonate, and the reaction between acid and carbonates.
Eisenmann, Mary A. J. Chem. Educ. 1980, 57, 897.
Agricultural Chemistry |
Plant Chemistry |
Applications of Chemistry |
Geochemistry |
Acids / Bases |
pH |
Oxidation / Reduction |
Precipitation / Solubility |
Aqueous Solution Chemistry
|
Stoichiometry of redox reactions Parker, Gordon A.
A question involving an amplification reaction sequence and the balancing of oxidation-reduction reactions.
Parker, Gordon A. J. Chem. Educ. 1980, 57, 721.
Stoichiometry |
Oxidation / Reduction
|
Co(acac)3 Synthesis, reactions, and spectra: An experiment for general chemistry Shalhoub, George M.
Students demonstrate that nitration of Co(acac)3 has occurred through proton NMR and IR spectroscopy.
Shalhoub, George M. J. Chem. Educ. 1980, 57, 525.
Synthesis |
Spectroscopy |
Titration / Volumetric Analysis |
NMR Spectroscopy |
IR Spectroscopy
|
Oxidation-reduction: An example of chemical sophistry Sisler, Harry H.; VanderWerf, Calvin A.
Examines the common definition for oxidation - reduction found in most introductory textbooks and specific examples of oxidation - reduction reactions.
Sisler, Harry H.; VanderWerf, Calvin A. J. Chem. Educ. 1980, 57, 42.
Oxidation / Reduction
|
The thermite lecture demonstration Bozzelli, Joseph W.; Barat, Robert B.
Glycerine plus KMnO4 are used to ignite the thermite in a clay flower pot.
Bozzelli, Joseph W.; Barat, Robert B. J. Chem. Educ. 1979, 56, 675.
Reactions |
Oxidation / Reduction
|
Corrosion: A Waste of energy J. Chem. Educ. Staff
Thermodynamics and electrochemical aspects of corrosion, and inhibition of the corrosion process.
J. Chem. Educ. Staff J. Chem. Educ. 1979, 56, 673.
Oxidation / Reduction |
Applications of Chemistry |
Metals |
Thermodynamics |
Electrochemistry
|
The barium hydroxide ammonium thiocyanate reaction: A titrimetric continuous variations experiment Harris, Arlo D.
Experiment that uses acid-base titrimetry to study the stoichiometry of a novel solid state reaction.
Harris, Arlo D. J. Chem. Educ. 1979, 56, 477.
Titration / Volumetric Analysis |
Acids / Bases |
Solid State Chemistry |
Stoichiometry
|
The precipitation of ferrous hydroxide: A lecture demonstration Lau, O. W.
This demonstration can illustrate such topics as the solubility of ionic compounds, electrode potentials of transition elements and their modification by formation of either an insoluble compound of a complex ion, and mixed valence compounds.
Lau, O. W. J. Chem. Educ. 1979, 56, 474.
Precipitation / Solubility |
Solutions / Solvents |
Aqueous Solution Chemistry |
Transition Elements |
Metals |
Oxidation / Reduction |
Oxidation State
|
Compact Compacts Huebner, Jay S.; Shiflett, R. B.; Blanck, Harvey F.
A collection of three suggestions regarding demonstrating the oxidation of hydrocarbons and the primary, secondary, and tertiary structure of proteins and the first law of thermodynamics as applied to air conditioning.
Huebner, Jay S.; Shiflett, R. B.; Blanck, Harvey F. J. Chem. Educ. 1979, 56, 389.
Oxidation / Reduction |
Alkanes / Cycloalkanes |
Molecular Properties / Structure |
Proteins / Peptides |
Thermodynamics
|
Acid-base half-reactions - A useful formalism for review lessons Atkinson, G. F.
An effective way to draw analogies between acid-base and redox effects while reviewing both.
Atkinson, G. F. J. Chem. Educ. 1979, 56, 238.
Oxidation / Reduction |
Reactions |
Acids / Bases |
Enrichment / Review Materials
|
Titration curve for a programmable pocket calculator Williams, Howard P.
A titration curve program written for a TI-58 or TI-59 programmable pocket calculator.
Williams, Howard P. J. Chem. Educ. 1979, 56, 237.
Acids / Bases |
pH |
Titration / Volumetric Analysis |
Quantitative Analysis
|
Comparison of strong acid and weak acid titration curves Schultz, C. W.; Spannuth, S. L.
Allows comparison of mechanically reproduced titration curves of strong acid and one or more weak acids versus strong base on the same piece of paper.
Schultz, C. W.; Spannuth, S. L. J. Chem. Educ. 1979, 56, 194.
Acids / Bases |
Titration / Volumetric Analysis |
Quantitative Analysis |
pH
|
More on balancing redox equations Kolb, Doris
Balancing atypical redox equations.
Kolb, Doris J. Chem. Educ. 1979, 56, 181.
Stoichiometry |
Oxidation / Reduction
|
A chemiluminescence demonstration - Oxalyl chloride oxidation Bramwell, Fitzgerald B.; Goodman, Sidney; Chandross, Edwin A.; Kaplan, Martin
An effective chemiluminescence demonstration requiring minimal preparation based on the oxidation of oxalyl chloride by hydrogen peroxide.
Bramwell, Fitzgerald B.; Goodman, Sidney; Chandross, Edwin A.; Kaplan, Martin J. Chem. Educ. 1979, 56, 111.
Photochemistry |
Oxidation / Reduction
|
Development of intellectual skills in the laboratory Ophardt, Charles E.
This first semester laboratory was designed to give instruction and practice in the intellectual skills of application, analysis, synthesis, and in Piaget's formal operations.
Ophardt, Charles E. J. Chem. Educ. 1978, 55, 485.
Learning Theories |
Qualitative Analysis |
Water / Water Chemistry |
Atmospheric Chemistry |
Acids / Bases |
Titration / Volumetric Analysis
|
Dissolving iron nails: A kinetics experiment Monaghan, Charles P.; Fanning, James C.
These authors share a kinetics experiment that appeals to students due to its familiarity.
Monaghan, Charles P.; Fanning, James C. J. Chem. Educ. 1978, 55, 400.
Oxidation / Reduction |
Kinetics
|
Balancing an atypical redox equation Carrano, S. A.
The author presents a particularly tricky redox problem and walks readers through a solution.
Carrano, S. A. J. Chem. Educ. 1978, 55, 382.
Chemometrics |
Oxidation / Reduction |
Stoichiometry
|
The chemical equation. Part II: Oxidation-reduction reactions Kolb, Doris
Oxidation has come to have a much broader meaning than its original iteration.
Kolb, Doris J. Chem. Educ. 1978, 55, 326.
Oxidation / Reduction
|
Determination of the percent Na4EDTA in bathroom cleaners Kump, K. I.; Palocsay, F. A.; Gallaher, T. N.
There has been much publicity recently about the importance and virtues of relevant experiments in chemistry lab courses. This experiment is for the general chemistry student involving the analysis of bathroom cleaners and determining the concentration of active ingredients.
Kump, K. I.; Palocsay, F. A.; Gallaher, T. N. J. Chem. Educ. 1978, 55, 265.
Titration / Volumetric Analysis |
pH |
Consumer Chemistry |
Quantitative Analysis
|
Simple liquid-liquid extraction experiment for freshmen Jones, Mark M.; Champion, Gwendalyn R.
A procedure can be described here can be carried out with the equipment normally present in a typical freshman laboratory. The experiment turns out to be a very good test of the student' technique and understanding.
Jones, Mark M.; Champion, Gwendalyn R. J. Chem. Educ. 1978, 55, 119.
Separation Science |
Liquids |
Titration / Volumetric Analysis
|
Electroplating of polyethylene Gorodetsky, Malka
In the process of reorganizing a first-year chemistry laboratory for engineering students the authors have developed experiments that reproduce the approach in solving industrial chemical problems.
Gorodetsky, Malka J. Chem. Educ. 1978, 55, 66.
Industrial Chemistry |
Electrochemistry |
Oxidation / Reduction |
Metals
|
Determination of pKa using the half-volume method: A laboratory experiment Stephens, S. Jane; Jonich, Michael J.
The equivalence point of an unknown acid is found; the value of pKa is read directly from the titration curve using the "half-volume" method.
Stephens, S. Jane; Jonich, Michael J. J. Chem. Educ. 1977, 54, 711.
pH |
Titration / Volumetric Analysis |
Quantitative Analysis
|
Oxidation and chemical environment Grotz, Leonard C.
Demonstrates that the ability to oxidize or reduce a species is dependent not only on the nature of the species but also on its chemical environment.
Grotz, Leonard C. J. Chem. Educ. 1977, 54, 618.
Oxidation / Reduction |
Aqueous Solution Chemistry
|
The burning sugar cube Smith, Douglas D.
A wide range of powdered solids can be used to produce a burning sugar cube.
Smith, Douglas D. J. Chem. Educ. 1977, 54, 552.
Carbohydrates |
Oxidation / Reduction |
Reactions |
Catalysis
|
Determination of iodide in seaweed. A general chemistry research experience Senyk, Joan I.
Students determine the best procedure for the analysis of iodide in locally gathered seaweed.
Senyk, Joan I. J. Chem. Educ. 1977, 54, 511.
Quantitative Analysis |
Separation Science |
Titration / Volumetric Analysis
|
Vanadium for high school students Grant, A. Ward, Jr.
After the instructor performs the reduction of vanadium(V) as a demonstration, students can perform the oxidation of the vanadium(II) back to its original state.
Grant, A. Ward, Jr. J. Chem. Educ. 1977, 54, 500.
Titration / Volumetric Analysis |
Oxidation State |
Oxidation / Reduction |
Metals |
Transition Elements
|
A demonstration in solid state chemistry: The nonstoichiometry of nickel oxide, NiO Perrino, Charles T.; Johnson, Robert
A simple experiment to demonstrate the nonstoichiometric synthesis of nickel oxide.
Perrino, Charles T.; Johnson, Robert J. Chem. Educ. 1977, 54, 367.
Stoichiometry |
Oxidation State |
Oxidation / Reduction |
Solid State Chemistry |
Metals
|
White to rose and return: A multipurpose demonstration Olson, Edwin S.
This demonstration is useful for illustrations of reversible redox reactions and for relative reduction potentials.
Olson, Edwin S. J. Chem. Educ. 1977, 54, 366.
Oxidation / Reduction |
Dyes / Pigments
|
Copper(II) aspirinate project for the general chemistry laboratory Dudek, Emily
The weight percent of copper in student-prepared copper(II) aspirinate is measured by electrogravimetric, spectrophotometric, and titrimetric methods.
Dudek, Emily J. Chem. Educ. 1977, 54, 329.
Titration / Volumetric Analysis |
Medicinal Chemistry |
Drugs / Pharmaceuticals |
Synthesis |
Quantitative Analysis
|
Lecture demonstration of the various oxidation states of manganese Arora, C. L.
Showing the colors associated with seven different oxidation states of magnesium and methods for preparing each.
Arora, C. L. J. Chem. Educ. 1977, 54, 302.
Oxidation / Reduction |
Oxidation State |
Transition Elements |
Metals
|
Simple titrimetric determination of lead in gasoline Watt, Sandra L.; Martino, Theresa M.; Chamberlin, Margaret A.; Laswick, Patty H.
Chlorine is used to break the lead-carbon bonds of lead additives, and the lead is titrated with EDTA.
Watt, Sandra L.; Martino, Theresa M.; Chamberlin, Margaret A.; Laswick, Patty H. J. Chem. Educ. 1977, 54, 262.
Applications of Chemistry |
Quantitative Analysis |
Titration / Volumetric Analysis
|
Visual aid for acid-base concepts Olson, Virgil K.; Osteryoung, Janet; Christie, Joseph H.; Turner, John A.
Three plots that the authors have found particularly useful in concisely illustrating a number of acid-base concepts relating to buffer capacity and acid-base titrations.
Olson, Virgil K.; Osteryoung, Janet; Christie, Joseph H.; Turner, John A. J. Chem. Educ. 1977, 54, 220.
Acids / Bases |
Titration / Volumetric Analysis
|
Introductory quantitative laboratory exercise Crossfield, A. J.
Two laboratory exercises that give good experiences with balance use, titration techniques, aliquot use, and mole calculations.
Crossfield, A. J. J. Chem. Educ. 1977, 54, 190.
Quantitative Analysis |
Gravimetric Analysis |
Titration / Volumetric Analysis |
Stoichiometry
|
Singlet oxygen in aqueous solution: A lecture demonstration Shakhashiri, Bassam Z.; Williams, Lloyd G.
Lecture demonstrations involving chemiluminescence are useful for the purpose both of displaying chemical phenomena and of illustrating specific principles.
Shakhashiri, Bassam Z.; Williams, Lloyd G. J. Chem. Educ. 1976, 53, 358.
Photochemistry |
Reactions |
Oxidation / Reduction |
Spectroscopy
|
The solubility of CaSO4: An ion exchange-complexometric titration experiment for the freshman laboratory Koubek, Edward
This lab may be used to introduce the student to two important areas of chemistry with the added advantage that one method serves as a direct check on the other.
Koubek, Edward J. Chem. Educ. 1976, 53, 254.
Titration / Volumetric Analysis |
Solutions / Solvents |
Ion Exchange
|
A simple general chemistry kinetics experiment Gellender, Martin
The oxidation of iodide ion by persulfate provides a gradual and clearly distinguishable appearance of color as the reaction proceeds.
Gellender, Martin J. Chem. Educ. 1975, 52, 806.
Kinetics |
Rate Law |
Reactions |
Oxidation / Reduction
|
Mercurimetric determination of chloride in Lite Salt. A freshman chemistry experiment Long, G. G.; Hentz, F. C., Jr.
A titration that can be used to determine Cl-, Br-, or I- in a wide variety of mixtures.
Long, G. G.; Hentz, F. C., Jr. J. Chem. Educ. 1975, 52, 714.
Quantitative Analysis |
Titration / Volumetric Analysis |
Consumer Chemistry
|
Raku: A redox experiment in glass Cichowski, Robert S.
In this experiment, students are given the opportunity to handle a glass making process, choosing a colorant and exploring possible reduction-oxidation reactions involving the colorant.
Cichowski, Robert S. J. Chem. Educ. 1975, 52, 616.
Oxidation / Reduction |
Applications of Chemistry
|
Conversion of black and white prints to color in daylight. A demonstration lecture for general and organic courses Wheeler, Thomas N.
A black and white print is converted to a full color print with the lights on; includes a detailed discussion of the chemical processes involved in the demonstration.
Wheeler, Thomas N. J. Chem. Educ. 1975, 52, 607.
Photochemistry |
Reactions |
Consumer Chemistry |
Dyes / Pigments |
Oxidation / Reduction
|
The lion roars: Rebuttals to "what is oxidation?" Schug, Kenneth; Koellner, John; Loveridge, Glen; Janke, James A.
Replies to the suggestion that oxidation and reduction be defined in terms of oxidation numbers.
Schug, Kenneth; Koellner, John; Loveridge, Glen; Janke, James A. J. Chem. Educ. 1975, 52, 602.
Oxidation / Reduction |
Oxidation State
|
Ksp experiment: The solubility product for barium hydroxide Reynolds, John P.
Two procedures for determining the solubility product of barium hydroxide and the effect of temperature on Ksp.
Reynolds, John P. J. Chem. Educ. 1975, 52, 521.
Precipitation / Solubility |
Solutions / Solvents |
Titration / Volumetric Analysis
|
Determining an endpoint by the appearance of precipitate Cochran, George T.; Hobart, David E.
A method for dependably identifying the endpoint in the titration of various concentrations of iodide solutions with lead(II).
Cochran, George T.; Hobart, David E. J. Chem. Educ. 1975, 52, 459.
Titration / Volumetric Analysis |
Quantitative Analysis |
Precipitation / Solubility
|
Modification of a constant flow buret Sturtevant, Floyd; Hartman, Kenneth
Modification and testing of an earlier presented design for of a constant flow buret.
Sturtevant, Floyd; Hartman, Kenneth J. Chem. Educ. 1975, 52, 393.
Laboratory Equipment / Apparatus |
Titration / Volumetric Analysis |
Acids / Bases |
Quantitative Analysis
|
Computer simulated titration curves Wilson, C. E.
Three computer programs for generating theoretical titration curves.
Wilson, C. E. J. Chem. Educ. 1975, 52, 344.
Acids / Bases |
Titration / Volumetric Analysis |
Quantitative Analysis
|
A new chemistry program for nursing and allied health students Stanitski, Conrad L.; Sears, Curtis T., Jr.
Outlines and discusses the topics considered in a chemistry program for nursing and allied health students.
Stanitski, Conrad L.; Sears, Curtis T., Jr. J. Chem. Educ. 1975, 52, 226.
Nonmajor Courses |
Applications of Chemistry |
Medicinal Chemistry |
Oxidation / Reduction |
Catalysis |
Acids / Bases |
pH |
Metabolism |
Drugs / Pharmaceuticals
|
A computer generated titration exercise Bishop, Craig V.; Wartell, M. A.
A computer program which is designed for use as an exercise in teaching titration and use of titration curves.
Bishop, Craig V.; Wartell, M. A. J. Chem. Educ. 1975, 52, 187.
Titration / Volumetric Analysis |
Quantitative Analysis
|
Mysterious stoichiometry Bowman, L. H.; Shull, C. M.
The student's task in this experiment is to determine the composition of a compound of chromium produced in an electrolytic cell.
Bowman, L. H.; Shull, C. M. J. Chem. Educ. 1975, 52, 186.
Titration / Volumetric Analysis |
Quantitative Analysis |
Stoichiometry |
Aqueous Solution Chemistry |
Electrochemistry |
Electrolytic / Galvanic Cells / Potentials
|
An easily fabricated pH cell Hendrixson, R. R.
A pH cell for use in titration experiments where the solution should be protected from the air.
Hendrixson, R. R. J. Chem. Educ. 1975, 52, 109.
Laboratory Equipment / Apparatus |
pH |
Quantitative Analysis |
Acids / Bases |
Titration / Volumetric Analysis
|
A computer program for the analysis of titration data Scholler, D. M.; Lyndrup, M. L.
A computer program to analyze titration data for monoprotic and diprotic acids.
Scholler, D. M.; Lyndrup, M. L. J. Chem. Educ. 1975, 52, 106.
Titration / Volumetric Analysis |
Quantitative Analysis |
Acids / Bases |
pH
|
What is oxidation? Herron, J. Dudley
Why do most teachers continue to define oxidation and reduction in terms of a gain and loss of electrons rather than in terms of a change in oxidation number? [Debut]
Herron, J. Dudley J. Chem. Educ. 1975, 52, 51.
Oxidation / Reduction |
Oxidation / Reduction |
Atomic Properties / Structure |
Reactions
|
Properties of air-A freshman chemistry lecture demonstration Schultz, C. W.
A simple yet dramatic lecture demonstration can help tie together concepts of oxygen chemistry, combustion, gas properties and rates of reactions.
Schultz, C. W. J. Chem. Educ. 1974, 51, 751.
Oxidation / Reduction |
Reactions |
Gases
|
A study of water pollution. An undergraduate chemistry laboratory experience Sarkis, Vahak D.
In addition to its environmental relevance, a water pollution study of the inorganic constituents in water as outlined in this article, provides the student with certain important principles of chemistry namely, colorimetric and titrimetric procedures.
Sarkis, Vahak D. J. Chem. Educ. 1974, 51, 745.
Applications of Chemistry |
Metals |
Green Chemistry |
Water / Water Chemistry |
Titration / Volumetric Analysis
|
Theoretical shape of acid-base titration curves without using logarithms Vennos, Mary S.
This presentation of the acid-base titration curve relates to interests students in paramedical careers might have.
Vennos, Mary S. J. Chem. Educ. 1974, 51, 631.
Acids / Bases |
Titration / Volumetric Analysis |
Nonmajor Courses
|
A new oxidation-reduction experiment Williams, T. R.; Van Doren, J. D.
The authors describe an experiment in oxidation and reduction that also introduces students to spectroscopy.
Williams, T. R.; Van Doren, J. D. J. Chem. Educ. 1974, 51, 421.
Oxidation / Reduction |
Spectroscopy
|
Reduction of copper(II) oxide by alkanes of low molecular weight Hoffman, A. B.; Hoffman, A. J.
This paper describes a laboratory where general chemistry students investigate the reduction of CuO by alkanes of low molecular weight.
Hoffman, A. B.; Hoffman, A. J. J. Chem. Educ. 1974, 51, 418.
Oxidation / Reduction |
Molecular Properties / Structure
|
A novel approach for qualitative analysis Ophadt, Charles E.
This qualitative analysis series allows students to spend a semester exploring the behavior of one ion during the course of a semester that might not be readily learned from a textbook.
Ophadt, Charles E. J. Chem. Educ. 1974, 51, 415.
Descriptive Chemistry |
Metals |
Oxidation / Reduction
|
Corrosion Slabaugh, W. H.
The topic of corrosion extends several basic concepts of electrochemistry with which students can relate. This article outlines: standard electrochemical potentials; corrosion of iron' corrosion of aluminum; application of electrochemical concepts; and ideas for some experiments.
Slabaugh, W. H. J. Chem. Educ. 1974, 51, 218.
Oxidation / Reduction |
Consumer Chemistry |
Electrochemistry
|
Analysis of reducing sugars in breakfast cereal and other foods. A general chemistry experiment Bittman, Robert
The experiment described here has been introduced in the freshman chemistry laboratory and has been found to be of interest to the student and instructive as well.
Bittman, Robert J. Chem. Educ. 1974, 51, 46.
Oxidation / Reduction |
Carbohydrates |
Food Science
|
The octane cannon experiment updated for television Richtol, H. H.; Nelson, D. L.; Reeves, R. R.
Video recording the detonation of octane in a clear tube for frame-by-frame analysis of a rapid reaction.
Richtol, H. H.; Nelson, D. L.; Reeves, R. R. J. Chem. Educ. 1973, 50, 856.
Alkanes / Cycloalkanes |
Reactions |
Oxidation / Reduction
|
Some reactions of tungsten: A lecture demonstration Nelson, D. L.; Reeves, R. R.; Richtol, H. H.
Several demonstrations involving reactions of tungsten.
Nelson, D. L.; Reeves, R. R.; Richtol, H. H. J. Chem. Educ. 1973, 50, 810.
Metals |
Reactions |
Oxidation / Reduction
|
A simple recording titrator Walton, Harold F.
Design and use of a simple recording titrator.
Walton, Harold F. J. Chem. Educ. 1973, 50, 795.
Laboratory Equipment / Apparatus |
Titration / Volumetric Analysis |
Quantitative Analysis
|
The reduction of CuO with burner gas and without a fume hood. A high school chemistry experiment Zidick, Clem; Weismann, Thomas
This experiment is a modification of the classic reduction of CuO with hydrogen gas, except natural gas is used as the reducing agent, eliminating the danger of working with hydrogen.
Zidick, Clem; Weismann, Thomas J. Chem. Educ. 1973, 50, 717.
Oxidation / Reduction |
Reactions |
Stoichiometry
|
A graphical-analytical iterative procedure for equivalence point determinations Sellers, Neal G.; Caruso, Joseph A.
An iterative approach has been developed that combines graphical measurements with analytical calculations to give an exact potentiometric endpoint irrespective of the stoichiometry of the reaction and magnitude of the associated equilibrium constants.
Sellers, Neal G.; Caruso, Joseph A. J. Chem. Educ. 1973, 50, 547.
Acids / Bases |
Titration / Volumetric Analysis
|
A use for broken glass electrodes Davidson, John E.
Once broken, the electrode can still be used as an indicator electrode for a potentiometric precipitation titration of silver or halide ions.
Davidson, John E. J. Chem. Educ. 1973, 50, 375.
Laboratory Equipment / Apparatus |
Titration / Volumetric Analysis |
Qualitative Analysis
|
A simple, effective demonstration of titration curves and indicator selection Nathan, Lawrence C.
The concepts of acid-base titration curves and selection of the appropriate indicator for an acid-base titration can be easily and effectively demonstrated by use of a potentiometric titration.
Nathan, Lawrence C. J. Chem. Educ. 1973, 50, 262.
Acids / Bases |
Dyes / Pigments |
Titration / Volumetric Analysis |
pH |
Quantitative Analysis
|
Conjugate acid-base and redox theory Pacer, Richard A.
Consideration of relative oxidizing / reducing strength would be greatly facilitated if this topic were presented in terms of transfer of one or more electrons between members of a conjugate redox pair.
Pacer, Richard A. J. Chem. Educ. 1973, 50, 178.
Acids / Bases |
Oxidation / Reduction
|
Commercial gas replaces hydrogen in general chemistry laboratory Ehlert, Thomas C.
Methane can be used in place of hydrogen to reduce metal oxides.
Ehlert, Thomas C. J. Chem. Educ. 1973, 50, 162.
Oxidation / Reduction |
Laboratory Management |
Gases |
Metals
|
The difference in oxidizing strength of dilute and concentrated nitric acid Glasoe, Paul K.
H2S gas is bubbled through dilute and concentrated HNO3.
Glasoe, Paul K. J. Chem. Educ. 1972, 49, A644.
Acids / Bases |
Oxidation / Reduction
|
The reducing property of ammonia Long, Robert H.
Heating black copper (II) oxide with ammonium carbonate yields metallic copper, red copper (I) oxide, and water.
Long, Robert H. J. Chem. Educ. 1972, 49, A85.
Oxidation / Reduction |
Reactions
|
The determination of dissolved oxygen by the Winkler method. A student laboratory experiment McCormick, Patrick G.
This method is based on the reaction between oxygen and a suspension of manganese(II) hydroxide in a strongly alkaline solution.
McCormick, Patrick G. J. Chem. Educ. 1972, 49, 839.
Water / Water Chemistry |
Aqueous Solution Chemistry |
Gases |
Quantitative Analysis |
Titration / Volumetric Analysis
|
The bombardier beetle Plumb, Robert C.; Erickson, Karen L.
The chemistry behind the bombardier beetle's chemical defenses illustrates the principles of reaction rates, catalysis, and laboratory safety.
Plumb, Robert C.; Erickson, Karen L. J. Chem. Educ. 1972, 49, 705.
Applications of Chemistry |
Natural Products |
Rate Law |
Catalysis |
Oxidation / Reduction |
Aromatic Compounds
|
Durable chrome plating Plumb, Robert C.; Saur, Roger L.
How chrome plating works to protect bumpers from corrosion.
Plumb, Robert C.; Saur, Roger L. J. Chem. Educ. 1972, 49, 626.
Electrochemistry |
Oxidation / Reduction |
Applications of Chemistry |
Kinetics
|
Durable chrome plating Plumb, Robert C.; Saur, Roger L.
How chrome plating works to protect bumpers from corrosion.
Plumb, Robert C.; Saur, Roger L. J. Chem. Educ. 1972, 49, 626.
Electrochemistry |
Oxidation / Reduction |
Applications of Chemistry |
Kinetics
|
The hydroxylaminolysis of penicillin G. A kinetic experiment Stuckwisch, C. G.
Penicillin reacts with hydroxylamine to yield a hydroxamic acid, which gives a colored complex with iron (III).
Stuckwisch, C. G. J. Chem. Educ. 1972, 49, 539.
Kinetics |
Rate Law |
Titration / Volumetric Analysis
|
The presentation of electrode potentials using an energy level diagram Pinfold, T. A.
The tabular form in which standard electrode potentials are usually presented often leads to confusion that can be diminished by representing the electrochemical series on an energy diagram like that provided.
Pinfold, T. A. J. Chem. Educ. 1972, 49, 506.
Electrochemistry |
Oxidation / Reduction |
Electrolytic / Galvanic Cells / Potentials
|
Dissolved oxygen. A relevant experiment for the introductory laboratory Stagg, William R.
Students measure the dissolved oxygen content of water from several natural sources as well as the change in solubility with temperature.
Stagg, William R. J. Chem. Educ. 1972, 49, 427.
Water / Water Chemistry |
Oxidation / Reduction |
Quantitative Analysis |
Solutions / Solvents |
Precipitation / Solubility |
Gases
|
Gravimetric titrimetry. A neglected technique Butler, Eliot A.; Swift, Ernest H.
Describes the gravimetric buret and its use in quantitative measurements.
Butler, Eliot A.; Swift, Ernest H. J. Chem. Educ. 1972, 49, 425.
Gravimetric Analysis |
Titration / Volumetric Analysis |
Quantitative Analysis
|
Programmable calculators. Simulated experiments Runquist, O.; Olsen, Rodney; Snadden, Bruce
Describes how titration and reaction rate experiments can be simulated on a programmable calculator.
Runquist, O.; Olsen, Rodney; Snadden, Bruce J. Chem. Educ. 1972, 49, 265.
Acids / Bases |
Titration / Volumetric Analysis |
Quantitative Analysis |
Rate Law |
Kinetics |
pH
|
A general chemistry experiment for the blind Hiemenz, Paul C.; Pfeiffer, EIizabeth
Presents a method for weighing and a conductometric titration that relies on an audio signal.
Hiemenz, Paul C.; Pfeiffer, EIizabeth J. Chem. Educ. 1972, 49, 263.
Minorities in Chemistry |
Titration / Volumetric Analysis |
Electrochemistry
|
Computer evaluation of titrations by Gran's method. An analytical chemistry experiment MacDonald, Timothy J.; Barker, Barbara J.; Caruso, Joseph A.
A computer program has been developed for the evaluation of potentiometric redox titration data by Gran's method.
MacDonald, Timothy J.; Barker, Barbara J.; Caruso, Joseph A. J. Chem. Educ. 1972, 49, 200.
Titration / Volumetric Analysis |
Quantitative Analysis |
Oxidation / Reduction |
Electrochemistry |
Acids / Bases
|
When your car rusts out Knockemus, Ward
Explains the rusting of a car by considering electrochemical corrosion and the Nernst equation.
Knockemus, Ward J. Chem. Educ. 1972, 49, 29.
Electrochemistry |
Oxidation / Reduction |
Applications of Chemistry |
Reactions
|
Questions [and] Answers Campbell, J. A.
Six questions requiring an application of basic principles of chemistry. [Debut]
Campbell, J. A. J. Chem. Educ. 1972, 49, 5.
Enrichment / Review Materials |
Vitamins |
Alcohols |
Oxidation / Reduction
|
Oxidation of ethanol by chromium(VI). A kinetics experiment for freshmen Finlayson, Muriel E.; Lee, Donald G.
The experiment presented here generates a good deal of interest and gives clear cut results without the necessity of using elaborate equipment.
Finlayson, Muriel E.; Lee, Donald G. J. Chem. Educ. 1971, 48, 473.
Kinetics |
Oxidation / Reduction |
Alcohols
|
A color indicating time reaction Chen, Philip S.
Combining solutions of sodium thoisulfate and ferric chloride produces a dramatic color change.
Chen, Philip S. J. Chem. Educ. 1970, 47, A784.
Reactions |
Oxidation / Reduction |
Aqueous Solution Chemistry
|
Demonstration notes: Spontaneous combustion Johnson, Joseph E.
Modifications or additions to previously published demonstration.
Johnson, Joseph E. J. Chem. Educ. 1970, 47, A439.
Oxidation / Reduction |
Reactions |
Gases |
Transport Properties |
Coordination Compounds
|
Miscellaneous Alyea, Hubert N.
These twelve overhead projection demonstrations include rates of reactions, clock reactions, the effect of temperature and the presence of a catalyst on the decomposition of hydrogen peroxide, the relationship between viscosity and temperature, equilibria, solubility product, and the common ion effect.
Alyea, Hubert N. J. Chem. Educ. 1970, 47, A437.
Oxidation / Reduction |
Kinetics |
Rate Law |
Reactions |
Acids / Bases |
Catalysis |
Equilibrium |
Precipitation / Solubility
|
Miscellaneous Alyea, Hubert N.
13 demonstrations, including electrophoresis, electrolysis, corrosion inhibition, endothermic and exothermic reactions, crystals and crystallization, reactions with sodium, and the kinetics of H2O2 decomposition.
Alyea, Hubert N. J. Chem. Educ. 1970, 47, A387.
Electrophoresis |
Dyes / Pigments |
Electrochemistry |
Oxidation / Reduction |
Calorimetry / Thermochemistry |
Phases / Phase Transitions / Diagrams |
Reactions |
Crystals / Crystallography |
Kinetics
|
Catalysis demonstrations with Cr2O3 Briggs, Thomas S.
Cr2O3 is used as a catalyst in the oxidation of nonflammable substances such as glycerine and glacial acetic acid.
Briggs, Thomas S. J. Chem. Educ. 1970, 47, A206.
Oxidation / Reduction |
Reactions |
Catalysis
|
Benzoic acid tree Chen, Philip S.
Benzaldehyde undergoes autoxidation to benzoic acid by air, particularly upon exposure to light; the white benzoic acid is caused to form a crystalline tree on twisted pipe cleaners.
Chen, Philip S. J. Chem. Educ. 1970, 47, A119.
Carboxylic Acids |
Acids / Bases |
Crystals / Crystallography |
Oxidation / Reduction |
Aldehydes / Ketones
|
Autoxidation of benzoin Chen, Philip S.
Benzoin in its enediol form undergoes autoxidation in alkaline solution in the presence of air.
Chen, Philip S. J. Chem. Educ. 1970, 47, A67.
Oxidation / Reduction |
Reactions
|
Differential titration for Ksp determination Krieger, Albert G.
Brief note recommending the use of silver electrodes for the determination of Ksp of silver acetate.
Krieger, Albert G. J. Chem. Educ. 1970, 47, 842.
Titration / Volumetric Analysis |
Quantitative Analysis |
Ion Exchange
|
Computer evaluation of rates experiment Krieger, Albert G.
Notes the availability of a Fortran IV computer program for the numerical evaluation of the "Oxidation of Iodide Ion by Persulfate Ion."
Krieger, Albert G. J. Chem. Educ. 1970, 47, 839.
Reactions |
Kinetic-Molecular Theory |
Oxidation / Reduction
|
Acid-base reaction parameters Freiser, Henry
The author demonstrates how the combined algebraic graphical approach can be extended to acid-base titration curve calculations as well as to buffer and sharpness index formulation.
Freiser, Henry J. Chem. Educ. 1970, 47, 809.
Acids / Bases |
pH |
Titration / Volumetric Analysis |
Chemometrics
|
General chemistry experiments: Six short, inexpensive procedures Heit, M. L.; Dauphinee, G. A.
These simple experiments involve conductivity comparisons of derivatives of the acetate ion, paper chromatography, sublimation, the effect of temperature on equilibrium, the detection of I-, and an example of an equilibrium shift.
Heit, M. L.; Dauphinee, G. A. J. Chem. Educ. 1970, 47, 532.
Electrochemistry |
Chromatography |
Phases / Phase Transitions / Diagrams |
Equilibrium |
Oxidation / Reduction
|
Interpretation of oxidation-reduction Goodstein, Madeline P.
Presents an interpretation of the oxidation number system based upon the electronegativity principle, thus removing the adjective "arbitrary" frequently found in the descriptions of oxidation number.
Goodstein, Madeline P. J. Chem. Educ. 1970, 47, 452.
Oxidation / Reduction |
Oxidation State |
Atomic Properties / Structure |
Reactions
|
Determination of successive ionization constants: A computer assisted laboratory experiment Jensen, R. E.; Garvey, R. G.; Paulson, B. A.
The computer programs described here plot students' titration data, locate equivalence points of the titration, calculate the apparent equivalent mass of the acid, and determine the successive ionization constants of the acid.
Jensen, R. E.; Garvey, R. G.; Paulson, B. A. J. Chem. Educ. 1970, 47, 147.
Acids / Bases |
Aqueous Solution Chemistry |
Titration / Volumetric Analysis
|
Thermal decomposition of water by the use of the Nernst glower Glaser, John O.
Relies on a Nernst glower to decompose water vapor into hydrogen and oxygen gas.
Glaser, John O. J. Chem. Educ. 1969, 46, A497.
Gases |
Oxidation / Reduction
|
Oxidizing action of sulfur dioxide Lauren, Paul M.
A burning ribbon of magnesium is dropped into a flask of sulfur dioxide produces elemental sulfur.
Lauren, Paul M. J. Chem. Educ. 1969, 46, A55.
Oxidation / Reduction |
Reactions
|
Baby bottles and elementary chemistry Davenport, D. A.
Presents several experiments that rely on baby bottles, including Charles' Law expansion, vapor pressure of volatile liquids, molecular weights of volatile liquids, and closed-atmosphere experiments.
Davenport, D. A. J. Chem. Educ. 1969, 46, 878.
Laboratory Equipment / Apparatus |
Laboratory Management |
Gases |
Liquids |
Oxidation / Reduction
|
An inexpensive motor-driven buret Hansen, Lee D.; Litchman, William M.; Lewis, Edwin A.; Allred, Ronald E.
Presents a design for as inexpensive motor-driven buret that relies on a micrometer syringe and a constant-speed electric motor.
Hansen, Lee D.; Litchman, William M.; Lewis, Edwin A.; Allred, Ronald E. J. Chem. Educ. 1969, 46, 876.
Laboratory Equipment / Apparatus |
Titration / Volumetric Analysis |
Laboratory Management
|
The oxidation of hydrazine by basic iodine solutions: A stoichiometric study Cooper, J. N.; Ramette, R. W.
This experiment relies on an oxidation-reduction reaction for which a variety of products is energetically possible.
Cooper, J. N.; Ramette, R. W. J. Chem. Educ. 1969, 46, 872.
Stoichiometry |
Oxidation / Reduction |
Reactions
|
Transistorized power sources for constant current coulometric titration Stock, John T.
This coulometric titrator uses a complementary pair of transistors to minimize heating affects and improve stability with respect to temperature; an example of experimental use for the apparatus is included.
Stock, John T. J. Chem. Educ. 1969, 46, 858.
Laboratory Equipment / Apparatus |
Titration / Volumetric Analysis |
Aqueous Solution Chemistry |
Quantitative Analysis |
Instrumental Methods |
Electrochemistry
|
A versatile reagent for general chemistry Dauphinee, G. A.; Heit, M. L.
This short note lists seven general chemistry experiments on various aspects of potassium hydrogen oxalate.
Dauphinee, G. A.; Heit, M. L. J. Chem. Educ. 1969, 46, 660.
Acids / Bases |
pH |
Titration / Volumetric Analysis |
Qualitative Analysis
|
A simple amperostat for coulometric titration Vincent, Colin A.; Ward, J. G.
Describes the circuit, assembly, and performance of a simple amperostat for coulometric titration.
Vincent, Colin A.; Ward, J. G. J. Chem. Educ. 1969, 46, 613.
Laboratory Equipment / Apparatus |
Titration / Volumetric Analysis |
Quantitative Analysis |
Oxidation / Reduction |
Electrochemistry
|
The oxidation states of molybdenum Stark, J. G.
This experiment involves a titrimetric determination of the oxidation states of molybdenum.
Stark, J. G. J. Chem. Educ. 1969, 46, 505.
Oxidation State |
Titration / Volumetric Analysis |
Transition Elements
|
A distribution experiment Campbell, J. A.; Nelson, Douglas; Rudesill, John
An experiment to determine the distribution coefficient of an acid between an aqueous and nonaqueous phase.
Campbell, J. A.; Nelson, Douglas; Rudesill, John J. Chem. Educ. 1969, 46, 454.
Acids / Bases |
Aqueous Solution Chemistry |
Thermodynamics |
Equilibrium |
Titration / Volumetric Analysis
|
Thermochemistry of hypochlorite oxidations Bigelow, M. Jerome
Students mix various proportions of aqueous sodium hypochlorite and sodium sulfite and plot the change in temperature to determine the stoichiometry of the reaction.
Bigelow, M. Jerome J. Chem. Educ. 1969, 46, 378.
Calorimetry / Thermochemistry |
Oxidation / Reduction |
Aqueous Solution Chemistry |
Stoichiometry |
Thermodynamics |
Mechanisms of Reactions
|
A computerized soda ash experiment for first-year college chemistry Dinga, Gustav P.
A modification of the traditional soda ash experiment to include a double indicator titration, pH titration, plotting of first and second derivative plots, and calculation of data by a computer.
Dinga, Gustav P. J. Chem. Educ. 1969, 46, 60.
Quantitative Analysis |
Titration / Volumetric Analysis
|
Group VI. The Sulfur Family D. Sulfur Dioxide Alyea, Hubert N.
Seven demonstrations involving sulfur dioxide.
Alyea, Hubert N. J. Chem. Educ. 1968, 45, A977.
Phases / Phase Transitions / Diagrams |
Reactions |
Precipitation / Solubility |
Oxidation / Reduction
|
A transparent dust explosion apparatus Haight, G. P., Jr.; Duvall, Robert.; Phillips, Stanley
Design for a transparent dust explosion apparatus
Haight, G. P., Jr.; Duvall, Robert.; Phillips, Stanley J. Chem. Educ. 1968, 45, A833.
Oxidation / Reduction |
Reactions
|
Nitrogen chemistry. E. Nitrites and nitrates Mancuso, Carl J.; Alyea, Hubert N.; Slabaugh, W. A.
Demonstrations include nitric acid + H2S, sodium nitrate + carbon, fire-writing with KNO3, nitrate ring test, nitrate versus nitrite, and micro-analysis for nitrogen compounds.
Mancuso, Carl J.; Alyea, Hubert N.; Slabaugh, W. A. J. Chem. Educ. 1968, 45, A607.
Qualitative Analysis |
Microscale Lab |
Oxidation / Reduction
|
Catalytic oxidation of natural gas by platinum Cooper, William C.
A hot platinum wire continues to glow in a stream of natural gas and air.
Cooper, William C. J. Chem. Educ. 1968, 45, A519.
Oxidation / Reduction |
Catalysis
|
Oxidation of copper by hydrochloric acid Walker, Noojin; George, Donald L.
Demonstrates the oxidation of copper by hydrochloric acid.
Walker, Noojin; George, Donald L. J. Chem. Educ. 1968, 45, A429.
Oxidation / Reduction |
Acids / Bases |
Electrochemistry
|
Spontaneous combustion Geoghegan, John T.; Sheers, Edward H.
Linseed oil is observed to char cotton over a period of time.
Geoghegan, John T.; Sheers, Edward H. J. Chem. Educ. 1968, 45, A429.
Oxidation / Reduction |
Reactions |
Calorimetry / Thermochemistry
|
Corrections for simple equations for titration curves of monoprotic acids Cortelyou, W. P.
Presents corrections for simple equations for titration curves of monoprotic acids and their derivations.
Cortelyou, W. P. J. Chem. Educ. 1968, 45, 677.
Acids / Bases |
Titration / Volumetric Analysis |
pH |
Aqueous Solution Chemistry
|
Studying the chemical properties of metallic aluminum Feifer, Nathan
Studying the chemical properties of aluminum is made much easier by first producing an amalgam by treating aluminum with mercurous nitrate.
Feifer, Nathan J. Chem. Educ. 1968, 45, 648.
Metals |
Oxidation / Reduction
|
Effect of complexing agents on oxidation potentials Helsen, Jef
A short note on a simple experiment to demonstrate the effect of complexing agents on the oxidation-reduction properties of redox couples such as Fe3+/Fe2+.
Helsen, Jef J. Chem. Educ. 1968, 45, 518.
Coordination Compounds |
Oxidation / Reduction |
Aqueous Solution Chemistry |
Electrochemistry
|
Why does methane burn? Sanderson, R. T.
A thermodynamic explanation for why methane burns.
Sanderson, R. T. J. Chem. Educ. 1968, 45, 423.
Thermodynamics |
Reactions |
Oxidation / Reduction |
Calorimetry / Thermochemistry |
Covalent Bonding |
Ionic Bonding
|
Is a weak acid monoprotic? A new look at titration curves Sturrock, Peter E.
It is suggested that experimental values of ?pH may be employed as a simple, yet sensitive, criterion to determine whether an unknown acid is monoprotic.
Sturrock, Peter E. J. Chem. Educ. 1968, 45, 258.
Acids / Bases |
Aqueous Solution Chemistry |
Titration / Volumetric Analysis |
pH
|
Coulometric titration of cyclohexene with bromine Evans, Dennis H.
Describes the coulometric titration of cyclohexene with bromine appropriate for an introductory course.
Evans, Dennis H. J. Chem. Educ. 1968, 45, 88.
Electrochemistry |
Titration / Volumetric Analysis |
Quantitative Analysis
|
Biological oxidations and energy conservation Kirschbaum, Joel
Examines the oxidative steps leading to the synthesis of ATP in living organisms and their metabolic control.
Kirschbaum, Joel J. Chem. Educ. 1968, 45, 28.
Bioenergetics |
Oxidation / Reduction |
Thermodynamics |
Metabolism
|
Metallurgy C. Reducton of Ore Rogers, Crosby U.
Demonstrations include the reduction of Cu2O with charcoal, heating zinc carbonate, and zinc sulfide heated in air.
Rogers, Crosby U. J. Chem. Educ. 1967, 44, A717.
Metallurgy |
Metals |
Oxidation / Reduction
|
Reaction rates and equilibria. D. Redox Klug, Evangeline B.
Sugar + chlorate + acid produces an exothermic reaction using a violent oxidizing agent.
Klug, Evangeline B. J. Chem. Educ. 1967, 44, A545.
Oxidation / Reduction |
Equilibrium
|
Burning without access to air Alfthan, Voldemar
Permanganate in the presence of sulfuric acid furnishes the oxygen needed for rapid combustion.
Alfthan, Voldemar J. Chem. Educ. 1967, 44, A465.
Oxidation / Reduction |
Reactions
|
Properties of flames Eberhardt, William H.
Demonstrates the chemistry of flame production.
Eberhardt, William H. J. Chem. Educ. 1967, 44, A345.
Oxidation / Reduction
|
Energy C. Electrical Energy Soule, Dean; Hornbeck, Leroy G.; Jackson, Kenneth V.; Barnard, Robert; Noerdin, Isjrin
Demonstrations include aluminum flashed in oxygen; photo-bromination of cinnamic acid, hexane, tartaric acid, toluene; photochemical H2+Cl2 explosion and the slow photochemical H2+Cl2 into 2HCl.
Soule, Dean; Hornbeck, Leroy G.; Jackson, Kenneth V.; Barnard, Robert; Noerdin, Isjrin J. Chem. Educ. 1967, 44, A83.
Reactions |
Oxidation / Reduction |
Photochemistry
|
Letter to the editor Bhatnagar, Vijay Mohan
Distinguishes between alpha- and beta-amylose and their mixtures, particular with respect to iodimetric titrations.
Bhatnagar, Vijay Mohan J. Chem. Educ. 1967, 44, 771.
Titration / Volumetric Analysis |
Carbohydrates
|
The stoichiometry of an oxidation-reduction reaction Latimer, George W., Jr.
A short note on the titration of hydrazine sulfate with standard bromate in the presence of sodium molybdate that requires students to identify the products through the use of some elementary qualitative analysis.
Latimer, George W., Jr. J. Chem. Educ. 1967, 44, 537.
Stoichiometry |
Oxidation / Reduction |
Reactions |
Titration / Volumetric Analysis |
Qualitative Analysis
|
Determination of the combining weight of tin: A new look at an old experiment Carmody, Walter R.
Describes efforts to improve the determination of the combining weight of tin
Carmody, Walter R. J. Chem. Educ. 1967, 44, 416.
Stoichiometry |
Oxidation / Reduction |
Reactions |
Synthesis
|
Syntheses and titrations of unknown acids: A general chemistry laboratory experiment Kauffman, George B.; Houghten, Richard A., Jr.
Students prepare a solid unknown acid from an unknown starting material and then determine its equivalent weight by titration with a standard base.
Kauffman, George B.; Houghten, Richard A., Jr. J. Chem. Educ. 1967, 44, 408.
Acids / Bases |
Synthesis |
Titration / Volumetric Analysis
|
Acid-base titration and distribution curves Waser, Jurg
Presents an alternative method for the calculation of acid-base titration curves.
Waser, Jurg J. Chem. Educ. 1967, 44, 274.
Acids / Bases |
Titration / Volumetric Analysis |
Quantitative Analysis |
Aqueous Solution Chemistry
|
VII - Combustion and flame Anderson, Robbin C.
Presents and describes an extensive bibliography on the study of combustion and flames.
Anderson, Robbin C. J. Chem. Educ. 1967, 44, 248.
Oxidation / Reduction |
Reactions |
Gases
|
Gravimetric titrations in the introductory chemistry laboratory Christian, Robert, Jr.
This short note suggests the use of single pan balances for gravimetric titrations in lieu of titrations requiring burets.
Christian, Robert, Jr. J. Chem. Educ. 1967, 44, 144.
Gravimetric Analysis |
Titration / Volumetric Analysis |
Quantitative Analysis
|
The stoichiometry of an oxidation-reduction reaction: An elementary chemistry experiment Child, W. C., Jr.; Ramette, R. W.
Students are asked to decide which of a number of nitrogen containing species is a reasonable product of the reaction between the hydroxylammonium ion and iron (III) on the basis of the experimentally determined stoichiometry of the reaction.
Child, W. C., Jr.; Ramette, R. W. J. Chem. Educ. 1967, 44, 109.
Stoichiometry |
Oxidation / Reduction |
Reactions
|
Ionization, Electricity D. Special electrical phenomena Bernard, Robert; Slabaugh, W. H.
Demonstrations include cation analysis, conductivity during the titration of Ba(OH)2 + HCl vs H2C2O4, and conductivity during the titration of Ba(OH)2 + HCl vs H3PO4.
Bernard, Robert; Slabaugh, W. H. J. Chem. Educ. 1966, 43, A901.
Titration / Volumetric Analysis |
Quantitative Analysis |
Qualitative Analysis |
Electrochemistry |
Conductivity
|
A new twist to Ksp evaluation Hazel, J. Fred
Evaluating the concentration of slightly soluble slats by passing the saturated solution through a cation resin and titrating the resulting acid in the eluate.
Hazel, J. Fred J. Chem. Educ. 1966, 43, 636.
Acids / Bases |
Aqueous Solution Chemistry |
Titration / Volumetric Analysis
|
Theoretical error in acid-base titrations Butcher, John; Quintus, Fernanado
The purpose of this report is to describe simple derivations of equations for titration error calculations for a number of acid-base titrations, and to show error curves for some typical cases.
Butcher, John; Quintus, Fernanado J. Chem. Educ. 1966, 43, 546.
Titration / Volumetric Analysis |
Quantitative Analysis |
Acids / Bases
|
Lewis acid-base titration in fused salts Schlegel, James M.
Dichromate ion, a Lewis acid, is titrated with carbonate ion, a Lewis base, in a fused KNO3-NaNO3 solvent.
Schlegel, James M. J. Chem. Educ. 1966, 43, 362.
Lewis Acids / Bases |
Acids / Bases |
Titration / Volumetric Analysis |
Quantitative Analysis
|
Simple equipment for automatic potentiometric pH titrations Olsen, Eugene D.
This paper describes a simple yet versatile apparatus employing a siphon pipet to deliver titrant solution automatically and accurately during the course of a titration.
Olsen, Eugene D. J. Chem. Educ. 1966, 43, 310.
pH |
Titration / Volumetric Analysis |
Electrochemistry |
Aqueous Solution Chemistry |
Quantitative Analysis |
Laboratory Equipment / Apparatus
|
The non-aqueous titration of the salts of weak acids Latimer, George W., Jr.
A method for the HClO4 titration of the salts of carboxylic acid in glacial acetic acid.
Latimer, George W., Jr. J. Chem. Educ. 1966, 43, 215.
Titration / Volumetric Analysis |
Quantitative Analysis
|
Combustion versus biological oxidation Asenjo, Conrado F.
Describes a simple toy that can be used to illustrate the difference between combustion and biological oxidation.
Asenjo, Conrado F. J. Chem. Educ. 1965, 42, 558.
Oxidation / Reduction |
Reactions
|
Potentiometric titration of aspirin in ethanol Shen, Samuel Y.; Gilman, Alfred J.
This experiment illustrates the potentiometric end point in nonaqueous acid-base titrations.
Shen, Samuel Y.; Gilman, Alfred J. J. Chem. Educ. 1965, 42, 540.
Titration / Volumetric Analysis |
Electrochemistry |
Quantitative Analysis |
Acids / Bases
|
Experimental approach to stoichiometry. In first-year chemistry at Northwestern King, L. Carroll; Cooper, Milton
Presents five experiments in which students are given a minimal set of directions and a simply stated objective.
King, L. Carroll; Cooper, Milton J. Chem. Educ. 1965, 42, 464.
Stoichiometry |
Coordination Compounds |
Undergraduate Research |
Aqueous Solution Chemistry |
Solutions / Solvents |
Precipitation / Solubility |
Titration / Volumetric Analysis
|
A simple constant-flow device for use in titrimetric analysis van Swaay, M.; Lolley, R. F.
Presents the design and an evaluation of performance for a simple constant-flow device for use in titrimetric analysis.
van Swaay, M.; Lolley, R. F. J. Chem. Educ. 1965, 42, 381.
Laboratory Equipment / Apparatus |
Titration / Volumetric Analysis |
Quantitative Analysis |
Instrumental Methods
|
Decolorization of glass Dingledy, David
A common error in general chemistry textbooks is a statement that manganese dioxide decolorizes commercial glass by virtue of its ability to oxidize blue-green iron(II) to yellow-brown iron(III).
Dingledy, David J. Chem. Educ. 1965, 42, 160.
Oxidation / Reduction |
Oxidation State
|
Computer program for the calculation of acid-base titration curves Emery, Allan R.
Describes the development of a computer program for the calculation of acid-base titration curves.
Emery, Allan R. J. Chem. Educ. 1965, 42, 131.
Titration / Volumetric Analysis |
Acids / Bases |
Aqueous Solution Chemistry |
Chemometrics
|
Continuous process for catalytic oxidation of ammonia Olmsted, Michael P.
A heated platinum coil catalyzes the oxidation of ammonia.
Olmsted, Michael P. J. Chem. Educ. 1964, 41, A973.
Catalysis |
Oxidation / Reduction |
Reactions
|
Metallic reduction of aqueous hydrogen chloride Walker, Noojin, Jr.
Calcium reacts with HCl to liberate hydrogen gas.
Walker, Noojin, Jr. J. Chem. Educ. 1964, 41, A477.
Reactions |
Oxidation / Reduction |
Metals |
Electrochemistry
|
Overhead projection with the pH meter Hoff, Darrel B.
Describes a means of projecting an image of a pH meter.
Hoff, Darrel B. J. Chem. Educ. 1964, 41, 662.
pH |
Acids / Bases |
Aqueous Solution Chemistry |
Titration / Volumetric Analysis
|
Automatic titrimetry in introductory college chemistry Zajicek, O. T.
The experiment described here employs an automatic pH titrator as a tool for the teaching of a detailed treatment of simultaneous equilibria.
Zajicek, O. T. J. Chem. Educ. 1964, 41, 554.
Titration / Volumetric Analysis |
pH |
Aqueous Solution Chemistry |
Acids / Bases |
Equilibrium
|
The oxidation of iodide ion by persulfate ion Moews, P. C., Jr.; Petrucci, R. H.
Presents the oxidation of iodide ion by persulfate ion as an ideal reaction to study as part of an experiment on kinetics.
Moews, P. C., Jr.; Petrucci, R. H. J. Chem. Educ. 1964, 41, 549.
Oxidation / Reduction |
Reactions |
Kinetics |
Rate Law
|
The burning sugar cube: Still unexplained? Doty, Gene
This brief note discusses possible explanations for the melting of a sugar cube where another rubbed with cigarette ashes burns.
Doty, Gene J. Chem. Educ. 1964, 41, 244.
Catalysis |
Oxidation / Reduction |
Phases / Phase Transitions / Diagrams
|
Demonstration notes: Chemiluminescence in electrolysis Villarreal, Fidel; Garcia, Octavio
Suggests a modification to the usual chemiluminescence demonstration with luminol.
Villarreal, Fidel; Garcia, Octavio J. Chem. Educ. 1963, 40, A477.
Electrochemistry |
Oxidation / Reduction
|
Analysis of aspirin: A conductometric titration Proctor, J. S.; Roberts, J. E.
Suggests research questions based on an earlier published article.
Proctor, J. S.; Roberts, J. E. J. Chem. Educ. 1963, 40, A306.
Undergraduate Research |
Titration / Volumetric Analysis |
Quantitative Analysis |
Electrochemistry |
Conductivity
|
Oxidation of bromide and iodide ions Dutton, Frederic B.
Color changes are indicative of oxidation reactions of bromide and iodide ions.
Dutton, Frederic B. J. Chem. Educ. 1963, 40, A241.
Oxidation / Reduction |
Reactions |
Electrochemistry
|
Oxidation of bromide and iodide ions Dutton, Frederic B.
Color changes are indicative of oxidation reactions of bromide and iodide ions.
Dutton, Frederic B. J. Chem. Educ. 1963, 40, A241.
Oxidation / Reduction |
Reactions |
Electrochemistry
|
A simple kinetics experiment for general chemistry laboratory Cone, W. H.; Hermens, R. A.
This simple kinetics experiment examines the oxidation of benzoic acid by potassium peroxodisulfate in the presence of catalytic amounts of silver ion.
Cone, W. H.; Hermens, R. A. J. Chem. Educ. 1963, 40, 421.
Kinetics |
Rate Law |
Oxidation / Reduction |
Catalysis
|
Some experiments on the stoichiometry of reactions Tietzie, H. R.
Students establish the stoichiometry of several reactions through volumetric analysis.
Tietzie, H. R. J. Chem. Educ. 1963, 40, 344.
Stoichiometry |
Titration / Volumetric Analysis
|
The chemistry of silver Young, Jay A.; Taylor, John K.
Suggests some research activities based on an article published previously in the Journal.
Young, Jay A.; Taylor, John K. J. Chem. Educ. 1962, 39, A960.
Undergraduate Research |
Oxidation / Reduction
|
Demonstration notes: Spontaneous combustion of H2S Thomas, P. M.
Hydrogen sulfide passed over lead(IV) oxide bursts into flame.
Thomas, P. M. J. Chem. Educ. 1962, 39, A839.
Oxidation / Reduction |
Reactions
|
Laboratory group exercises in acid-base theory Zuehlke, R. W.
An experiment to introduce the topic of acid-base titrimetry and illustrate the properties of acids and bases.
Zuehlke, R. W. J. Chem. Educ. 1962, 39, 354.
Acids / Bases |
Titration / Volumetric Analysis |
pH
|
Writing a chemical equation from titration data: Experiment for general chemistry State, Harold M.
Students titrate phosphoric acid with sodium hydroxide to determine the chemical formula of Na2HPO4.
State, Harold M. J. Chem. Educ. 1962, 39, 297.
Acids / Bases |
Titration / Volumetric Analysis |
Aqueous Solution Chemistry |
Stoichiometry
|
Demonstrations for the overhead projector Spiegler, K. S.; Gruenberg, J.; Trattner, Adriana; Weiss, W.
Demonstrations include the production of iron, potentiometric titration, photography, and the measurement of pH by indicators.
Spiegler, K. S.; Gruenberg, J.; Trattner, Adriana; Weiss, W. J. Chem. Educ. 1962, 39, 86.
Titration / Volumetric Analysis |
pH |
Aqueous Solution Chemistry |
Acids / Bases
|
Redox revisited Lockwood, Karl L.
Examines issues regarding instruction in oxidation-reduction chemistry.
Lockwood, Karl L. J. Chem. Educ. 1961, 38, 326.
Oxidation / Reduction |
Oxidation State |
Stoichiometry
|
Oxidation-reduction mechanisms Duke, F. R.
Summarizes various types of oxidation-reduction mechanisms.
Duke, F. R. J. Chem. Educ. 1961, 38, 161.
Oxidation / Reduction |
Mechanisms of Reactions
|
Weight titrations revived Thoburn, James M.
With the use of syringes and automatic balances, it is possible to make weight titrations more practical than ordinary volumetric determinations.
Thoburn, James M. J. Chem. Educ. 1959, 36, 616.
Titration / Volumetric Analysis |
Quantitative Analysis |
Laboratory Equipment / Apparatus
|
Letters to the editor Radley, Edward T.
A suggestion to improve the precision of titrations without burets.
Radley, Edward T. J. Chem. Educ. 1959, 36, 474.
Laboratory Equipment / Apparatus |
Titration / Volumetric Analysis
|
Letters to the editor Perkins, Alfred J.
A discussion of balancing redox equations in response to an earlier article in the Journal.
Perkins, Alfred J. J. Chem. Educ. 1959, 36, 474.
Stoichiometry |
Oxidation / Reduction
|
Titration without burets Gaddis, Shirley W.
Describes the use of small polyethylene bottles to measure the acid strength of vinegar.
Gaddis, Shirley W. J. Chem. Educ. 1959, 36, 290.
Acids / Bases |
Aqueous Solution Chemistry |
Titration / Volumetric Analysis |
Qualitative Analysis |
Laboratory Equipment / Apparatus
|
Writing oxidation-reduction equations: A review of textbook materials Yalman, Richard G.
The purpose of this paper is to review those parts of a number of textbooks containing aids or suggestions to help students balance oxidation-reduction reactions.
Yalman, Richard G. J. Chem. Educ. 1959, 36, 215.
Stoichiometry |
Oxidation / Reduction |
Oxidation State
|
Balancing organic redox equations Burrell, Harold P. C.
This paper presents a method for balancing organic redox equations based on the study of structural formulas and an artificial device - the use of hypothetical free radicals.
Burrell, Harold P. C. J. Chem. Educ. 1959, 36, 77.
Stoichiometry |
Oxidation / Reduction |
Free Radicals
|
Instability of sulfur-potassium chlorate mixture: A chemical view Tanner, Herbert G.
Provides two experiments intended to display the chemistry of and safety guidelines associated with the ignition of sulfur-potassium chlorate mixtures, regularly used as a fuel by model rocket enthusiasts.
Tanner, Herbert G. J. Chem. Educ. 1959, 36, 58.
Oxidation / Reduction
|
Explosive hazard of aluminum-liquid oxygen mixtures Austin, Calvin M.; Rohrer, Charles S.; Seifert, Ralph L.
Details the serious explosive hazards and ignition properties of aluminum-liquid oxygen mixtures; this demonstration should NEVER be used for classroom or public viewing purposes.
Austin, Calvin M.; Rohrer, Charles S.; Seifert, Ralph L. J. Chem. Educ. 1959, 36, 54.
Oxidation / Reduction
|
The chemistry of silver. A demonstration sequence Schwenck, J. Rae
Presents a series of reactions in which silver is transformed from its elemental form into several different compounds and then returned to its elemental form.
Schwenck, J. Rae J. Chem. Educ. 1959, 36, 45.
Aqueous Solution Chemistry |
Oxidation / Reduction
|
The stability of solutions for the iodine clock reaction Kauffman, George B.; Hall, Charles R.
The results of attempts to stabilize solutions needed for the iodine clock reaction to allow long-term storage.
Kauffman, George B.; Hall, Charles R. J. Chem. Educ. 1958, 35, 577.
Reactions |
Kinetics |
Oxidation / Reduction |
Aqueous Solution Chemistry
|
An exact titration equation Bolie, Victor W.
The purpose of this paper is to show the development of a titration equation for a precipitation reaction which is exact in the mathematical sense.
Bolie, Victor W. J. Chem. Educ. 1958, 35, 449.
Titration / Volumetric Analysis |
Chemometrics |
Undergraduate Research
|
Inexpensive, nonclogging, non-freezing buret valve Crawford, Crayton M.
Presents a design for a nonclogging, non-freezing buret valve.
Crawford, Crayton M. J. Chem. Educ. 1958, 35, 380.
Laboratory Equipment / Apparatus |
Titration / Volumetric Analysis
|
Reduction of oxides by hydrogen: A quantitative experiment for general chemistry laboratory Masterton, William L.; Demo, Joseph J., Jr.
Six oxides (CuO, NiO, CoO, SnO2, Co3O4, and Cu2O) have been found to give satisfactory results for reduction by hydrogen and determination of equivalent weights.
Masterton, William L.; Demo, Joseph J., Jr. J. Chem. Educ. 1958, 35, 242.
Oxidation / Reduction |
Quantitative Analysis
|
Letters to the editor Campbell, J. A.
The author includes an interpretation of the "Beating Heart Experiment" which was omitted in an earlier Journal article.
Campbell, J. A. J. Chem. Educ. 1957, 34, 362.
Oxidation / Reduction |
Electrochemistry
|
Fluorescent lighting as an analytical hazard Bishop, John A.
Fluorescent lighting in an analytical laboratory decomposes AgCl precipitates, obscuring certain titrations.
Bishop, John A. J. Chem. Educ. 1956, 33, 372.
Photochemistry |
Titration / Volumetric Analysis |
Quantitative Analysis |
Laboratory Management
|
Indicators and the basis for their use Gorin, George
Describes the method for selecting appropriate indicators and the teaching of this subject.
Gorin, George J. Chem. Educ. 1956, 33, 318.
Dyes / Pigments |
Titration / Volumetric Analysis |
Acids / Bases |
Aqueous Solution Chemistry |
Quantitative Analysis |
pH
|
Lecture demonstrations of incendiaries. II Antelman, Marvin
Demonstrations described involve gunpowder, the combustion of sulfur dioxide, zirconium, nitric acid, sodium peroxide, hot iron, ammonium nitrate, organic chlorates and nitrates, and zinc stearate.
Antelman, Marvin J. Chem. Educ. 1955, 32, 273.
Reactions |
Oxidation / Reduction
|
Material balances and redox equations Bennett, George W.
It is the purpose of this paper to remind teachers of a third method of balancing redox equations that does not depend on rule-of-thumb empiricism but relies on the conservation of matter.
Bennett, George W. J. Chem. Educ. 1954, 31, 324.
Stoichiometry |
Oxidation / Reduction |
Oxidation State
|
Otis Coe Johnson and redox equations Bennett, George W.
It is the purpose of this paper to point out what is basic verity and what is empiricism in Johnson's method for balancing oxidation-reduction equations.
Bennett, George W. J. Chem. Educ. 1954, 31, 157.
Oxidation / Reduction |
Oxidation State |
Stoichiometry
|
A modified silver tree Shaw, William H. R.; Nowlin, B. T.
This silver tree begins with an evergreen-shaped construction made from sheet copper.
Shaw, William H. R.; Nowlin, B. T. J. Chem. Educ. 1953, 30, 581.
Aqueous Solution Chemistry |
Oxidation / Reduction
|
Demonstration of the intermediate position of cobalt between iron and nickel Goldstein, Ernst M.
The different oxidizability of ferrous, cobaltous, and nickelous hydroxides, together with increasing color deepness of the oxidation products, can be used to demonstrate that cobalt is intermediate in its properties between iron and nickel.
Goldstein, Ernst M. J. Chem. Educ. 1953, 30, 387.
Periodicity / Periodic Table |
Metals |
Oxidation / Reduction |
Atomic Properties / Structure |
Qualitative Analysis
|
Letters Swinehart, D. F.
The author responds to questions raised regarding his earlier article on oxidation states.
Swinehart, D. F. J. Chem. Educ. 1953, 30, 265.
Oxidation / Reduction |
Oxidation State
|
Letters Miranda, Bienvenido T.
Commmentary on two earlier Journal articles.
Miranda, Bienvenido T. J. Chem. Educ. 1953, 30, 264.
Oxidation State |
Oxidation / Reduction |
Reactions
|
Suggestions for demonstrations Lapp, Walter S.
The author briefly describes demonstrations involving the cathodic protection of iron from corrosion, the use of lithium in preparing hydrogen, an easily constructed conductivity kit, and a support for rubber stoppers.
Lapp, Walter S. J. Chem. Educ. 1952, 29, 611.
Oxidation / Reduction |
Conductivity |
Aqueous Solution Chemistry
|
Letters Hackney, J. C.
The author elaborates on the source of a fallacy in the calculation of an overall redox potential by combination of two half-cell potentials.
Hackney, J. C. J. Chem. Educ. 1952, 29, 472.
Electrochemistry |
Electrolytic / Galvanic Cells / Potentials |
Aqueous Solution Chemistry |
Oxidation / Reduction
|
An experiment on the law of multiple proportions Secrist, John H.
It is suggested that the reduction of cuprous and cupric oxides serves as a satisfactory laboratory demonstration of the law of multiple proportions.
Secrist, John H. J. Chem. Educ. 1952, 29, 283.
Stoichiometry |
Oxidation / Reduction
|
Letters Engelhart, Max D.
The author responds to critical comments made in regard to his earlier paper.
Engelhart, Max D. J. Chem. Educ. 1952, 29, 48.
Oxidation / Reduction
|
A lecture demonstration of oxidation-reduction Sanderson, R. T.
A very helpful demonstration of oxidation-reduction by electron transfer can be presented with the aid of a few permanent magnets of progressively increasing strengths to represent atoms of oxidizing agents, and an iron object to represent an electron.
Sanderson, R. T. J. Chem. Educ. 1951, 28, 657.
Oxidation / Reduction
|
Letters Angus, L. H.
Briefly describes the use of ferroxyl gels to demonstrate the oxidation of iron.
Angus, L. H. J. Chem. Educ. 1951, 28, 556.
Oxidation / Reduction
|
Letters Hackney, J. C.
Discusses pitfalls in the construction of "objective" examinations.
Hackney, J. C. J. Chem. Educ. 1951, 28, 556.
Oxidation / Reduction
|
The effect of nitrous acid on the oxidizing power of nitric acid Brasted, Robert C.
this demonstration illustrates that the oxidizing action of nitric acid may be considerably enhanced by small quantities of nitrous acid which are usually present.
Brasted, Robert C. J. Chem. Educ. 1951, 28, 442.
Acids / Bases |
Oxidation / Reduction |
Aqueous Solution Chemistry
|
Oxidation number in auto-redox reactions Eblin, Lawrence P.
Examines the use of oxidation numbers in exploring the chemistry of auto-redox reactions.
Eblin, Lawrence P. J. Chem. Educ. 1951, 28, 221.
Oxidation State |
Oxidation / Reduction
|
|
