| Journal Articles: 200 results |
|
|
More on ClO and Related Radicals William B. Jensen
The novel Lewis structure for the ClO radical and other related 13e isoelectronic species presented by Hirsch and Kobrak is identical to that proposed by Linnett over 40 years ago for the same species on the basis of his well-known double-quartet approach to Lewis structures.
Jensen, William B. J. Chem. Educ. 2008, 85, 783.
Ionic Bonding |
Lewis Structures |
Free Radicals
|
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
|
A Simplified Model To Predict the Effect of Increasing Atmospheric CO2 on Carbonate Chemistry in the Ocean Brian J. Bozlee, Maria Janebo, and Ginger Jahn
The chemistry of dissolved inorganic carbon in seawater is reviewed and used to predict the potential effect of rising levels of carbon dioxide in the atmosphere. It is found that calcium carbonate may become unsaturated in cold surface seawater by the year 2100, resulting in the destruction of calcifying organisms such as coral.
Bozlee, Brian J.; Janebo, Maria; Jahn, Ginger. J. Chem. Educ. 2008, 85, 213.
Applications of Chemistry |
Aqueous Solution Chemistry |
Atmospheric Chemistry |
Equilibrium |
Green Chemistry |
Water / Water Chemistry
|
Reply to A. F.Photooxidation of Bilirubin to Biliverdin and Bilirubin Structure William F. Coleman
The JCE Featured Molecules Editor replies to criticisms of a previous Featured Molecule.
Coleman, William F. J. Chem. Educ. 2008, 85, 202.
Dyes / Pigments |
Photochemistry |
Molecular Properties / Structure |
Molecular Modeling
|
Reply to A. F.Photooxidation of Bilirubin to Biliverdin and Bilirubin Structure A. E. Pillay and F. M. Salih
The authors reply to criticism of their earlier article.
Pillay, A. E.; Salih, F. M. J. Chem. Educ. 2008, 85, 201.
Dyes / Pigments |
Photochemistry
|
Photooxidation of Bilirubin to Biliverdin and Bilirubin Structure A. F. McDonagh and D. A. Lightner
Two recent articles in this Journal dealt with bilirubin (BR), the yellow pigment of neonatal jaundice. While BR is a fascinating biomedically-relevant tool for teaching photochemistry and stereochemistry, both articles are minefields of misinformation whose main pedagogical use might be as examples of error.
McDonagh, A. F.; Lightner, D. A. J. Chem. Educ. 2008, 85, 199.
Dyes / Pigments |
Photochemistry
|
Experimental Determination of Ultraviolet Radiation Protection of Common Materials Susana C. A. Tavares, Joaquim C. G. Esteves de Silva, and João Paiva
The oxidation of iodide is used as an indicator for the degree of exposure to UV radiation and to investigate the protection given by a simulation of ozone using plexiglass plates, sunscreen lotions, cotton cloth with different colors, and aqueous solutions with different concentrations of natural organic matter.
Tavares, Susana C. A.; Esteves de Silva, Joaquim C. G.; Paiva, João. J. Chem. Educ. 2007, 84, 1963.
Atmospheric Chemistry |
Consumer Chemistry |
UV-Vis Spectroscopy
|
The Chemistry of Paper Preservation Henry A. Carter
This article examines the applications of chemistry to paper preservation. The acid-catalyzed hydrolysis of cellulose accounts for the deterioration of paper in library books and other written records. To combat this threat to our written heritage, new permanent papers have been developed that are relatively chemically stable and undergo a very slow rate of deterioration.
Carter, Henry A. J. Chem. Educ. 2007, 84, 1937.
Acids / Bases |
Applications of Chemistry |
Aqueous Solution Chemistry |
Free Radicals |
Gas Chromatography |
HPLC |
pH |
Kinetics |
Rate Law
|
"Holes" in Student Understanding: Addressing Prevalent Misconceptions Regarding Atmospheric Environmental Chemistry Sara C. Kerr and Kenneth A. Walz
This study evaluated the misconception that global warming is caused by holes in the ozone layer, other ideas surrounding atmospheric chemistry that are responsible for the entanglement of the greenhouse effect and ozone depletion in students' conceptual frameworks, and the effectiveness of computer-based online data-analysis exercises to address these shortcomings.
Kerr, Sara C.; Walz, Kenneth A. J. Chem. Educ. 2007, 84, 1693.
Atmospheric Chemistry |
Student-Centered Learning
|
Geographical Information Systems (GIS) Mapping of Environmental Samples across College Campuses Kathleen L. Purvis-Roberts, Harriet P. Moeur, and Andrew Zanella
In this laboratory experiment, students take environmental samples (concentrations of nitrogen dioxide) and geospatial coordinates with a global position systems unit at various locations around campus, map their data on a geo-referenced map with geographical information systems software, and compare their results to those observed by governmental agencies.
Purvis-Roberts, Kathleen L.; Moeur, Harriet P.; Zanella, Andrew. J. Chem. Educ. 2007, 84, 1691.
Applications of Chemistry |
Atmospheric Chemistry |
Gases |
Laboratory Computing / Interfacing |
UV-Vis Spectroscopy
|
A Simple Calorimetric Experiment That Highlights Aspects of Global Heat Retention and Global Warming Joel D. Burley and Harold S. Johnston
In this laboratory experiment, general chemistry students verify that heat is consumed in the melting of ice, with no increase in temperature until all the ice has melted. The fundamental calorimetric principles demonstrated by the lab results are then developed to help students better assess and understand the experimental evidence associated with global warming.
Burley, Joel D.; Johnston, Harold S. J. Chem. Educ. 2007, 84, 1686.
Atmospheric Chemistry |
Calorimetry / Thermochemistry
|
Incomplete Combustion of Hydrogen: Trapping a Reaction Intermediate Bruce Mattson and Trisha Hoette
In this demonstration, a hydrogen flame is played across the face of an ice cube and the combustion is quenched in an incomplete state. The resulting solution contains a stable side-product, hydrogen peroxide, whose presence can be verified with two simple chemical tests.
Mattson, Bruce; Hoette, Trisha. J. Chem. Educ. 2007, 84, 1668.
Descriptive Chemistry |
Free Radicals |
Gases |
Molecular Properties / Structure |
Reactions |
Reactive Intermediates
|
Lewis Structure Representation of Free Radicals Similar to ClO Warren Hirsch and Mark Kobrak
An unconventional Lewis structure is proposed to explain the properties of the free radical ClO and a series of its isoelectronic analogues, particularly trends in the spin density of these species.
Hirsch, Warren; Kobrak, Mark. J. Chem. Educ. 2007, 84, 1360.
Atmospheric Chemistry |
Computational Chemistry |
Covalent Bonding |
Free Radicals |
Lewis Structures |
Molecular Modeling |
MO Theory |
Valence Bond Theory
|
Optical Properties of Fluorescent Mixtures: Comparing Quantum Dots to Organic Dyes Benjamin M. Hutchins, Thomas T. Morgan, Miné G. Ucak-Astarlioglu, and Mary Elizabeth Williams
Visually observed fluorescent colors of quantum dots in conjunction with spectroscopic data show students the additive emission of such mixtures; while some appear to emit white light, their fluorescence peaks remain spectroscopically resolved.
Hutchins, Benjamin M.; Morgan, Thomas T.; Ucak-Astarlioglu, Miné G.; Williams, Mary Elizabeth. J. Chem. Educ. 2007, 84, 1301.
Dyes / Pigments |
Fluorescence Spectroscopy |
Materials Science |
Nanotechnology |
Photochemistry |
Qualitative Analysis |
Spectroscopy |
UV-Vis Spectroscopy
|
Guitar Strings as Standing Waves: A Demonstration Michael Davis
This demonstration uses an acoustic guitar to produce three unique harmonic vibrations, each of which is representative of a standing wave and illustrates the concept of quantization.
Davis, Michael. J. Chem. Educ. 2007, 84, 1287.
Atmospheric Chemistry |
Atomic Properties / Structure |
Atomic Spectroscopy
|
The Chemistry of Swimming Pool Maintenance Carl Salter and David L. Langhus
This paper examines the key ideas behind swimming pool chemistry -- the central importance of pH and its effect on chlorine sanitation and calcium carbonate solubility. The paper also reviews the analytical procedures and common practices used to monitor and control pool chemistry or correct problems.
Salter, Carl; Langhus, David L. J. Chem. Educ. 2007, 84, 1124.
Acids / Bases |
Applications of Chemistry |
Aqueous Solution Chemistry |
Dyes / Pigments |
pH |
Photochemistry |
Precipitation / Solubility |
Water / Water Chemistry
|
Puzzling through General Chemistry: A Light-Hearted Approach to Engaging Students with Chemistry Content Susan L. Boyd
Presents ten puzzles to make chemistry more interesting while reinforcing important concepts.
Boyd, Susan L. J. Chem. Educ. 2007, 84, 619.
Aqueous Solution Chemistry |
Atmospheric Chemistry |
Calorimetry / Thermochemistry |
Gases |
Molecular Properties / Structure |
Periodicity / Periodic Table |
Stoichiometry |
VSEPR Theory |
Atomic Properties / Structure
|
Response to "Keeping Our Cool" Roy W. Clark
General chemistry teachers should teach general chemistry. They should teach neither the appreciation of the wonders of modern science, nor should they teach the evil consequences of modern science.
Clark, Roy W. J. Chem. Educ. 2007, 84, 232.
Atmospheric Chemistry
|
Chemical Composition of a Fountain Pen Ink J. Martín-Gil, M. C. Ramos-Sánchez, F. J. Martín-Gil, and M. José-Yacamán
Black ink (Parker Quink) widely used in 19501980 is characterized and compared with other traditional inks. There is agreement that the main cause of ink decay is the iron(II) sulfate content, whose effect is stronger than the destructive action of acids.
Martín-Gil, J.; Ramos-Sánchez, M. C.; Martín-Gil, F. J.; José-Yacamán, M. J. Chem. Educ. 2006, 83, 1476.
Applications of Chemistry |
Bioinorganic Chemistry |
Dyes / Pigments |
Free Radicals |
Reactions
|
Photochemical Oxidation of Bilirubin to Biliverdin William F. Coleman
The Featured Molecules for this month are related to the photochemical oxidation of bilirubin to biliverdin. Biliverdin is a breakdown product of hemoglobin which is reduced by biliverdin reductase to bilirubin, the molecule that is responsible for neonatal jaundice.
Coleman, William F. J. Chem. Educ. 2006, 83, 1329.
Photochemistry |
Molecular Modeling |
Molecular Properties / Structure
|
Solar Irradiation of Bilirubin: An Experiment in Photochemical Oxidation A. E. Pillay and F. M. Salih
Describes an experiment on photochemical oxidation employing solar irradiation of bilirubin followed by spectrophotometric absorption. The bilirubin undergoes depletion, and the declining concentration can be expressed exponentially as a function of time. The instantaneous reaction rates, half-life, and rate constant can be derived directly from the exponential plot.
Pillay, A. E.; Salih, F. M. J. Chem. Educ. 2006, 83, 1327.
Applications of Chemistry |
Bioanalytical Chemistry |
UV-Vis Spectroscopy |
Photochemistry
|
What Is Your Mental Picture of Ordinary Air? Richard W. Ramette and Dale K. Haworth
Students differ widely in their conceptions about the nature of air.
Ramette, Richard W.; Haworth, Dale K. J. Chem. Educ. 2006, 83, 834.
Atmospheric Chemistry |
Gases
|
Factors That Influence Relative Acid Strength in Water: A Simple Model Michael J. Moran
The pKa's of diverse aqueous acids HA correlate well with the sum of two gas-phase properties: the HA bond-dissociation enthalpy and the electron affinity of the A radical. It is suggested that rather than bond strength alone or bond polarity, the sum of the enthalpies of these two steps is a fairly good indicator of relative acidity.
Moran, Michael J. J. Chem. Educ. 2006, 83, 800.
Acids / Bases |
Aqueous Solution Chemistry |
Atomic Properties / Structure |
Free Radicals
|
Moving Chemistry Education into 3D: A Tetrahedral Metaphor for Understanding Chemistry. Union Carbide Award for Chemical Education Peter Mahaffy
Proposes a new conceptual metaphor to enrich our description of chemistry education and support the many existing efforts to help students make connections with the chemistry found in textbooks.
Mahaffy, Peter. J. Chem. Educ. 2006, 83, 49.
Applications of Chemistry |
Atmospheric Chemistry |
Learning Theories |
Nonmajor Courses |
Student-Centered Learning
|
Introduction to Photolithography: Preparation of Microscale Polymer Silhouettes Kimberly L. Berkowski, Kyle N. Plunkett, Qing Yu, and Jeffrey S. Moore
In this experiment, a glass microscope slide acts as the microchip. Students can pattern this "microchip" by layering negative photoresist on the slide using a solution containing monomer, crosslinker, photoinitiator, and dye. The students then cover the photoresist with a photomask, which is the negative of a computer-generated image or text printed on transparency film, and illuminate it with UV light. The photoresist in the exposed area polymerizes into a polymer network with a shape dictated by the photomask. The versatility of this technique is exemplified by allowing each student to fabricate virtually any shape imaginable, including his or her silhouette.
Berkowski, Kimberly L.; Plunkett, Kyle N.; Yu, Qing; Moore, Jeffrey S. J. Chem. Educ. 2005, 82, 1365.
Materials Science |
Applications of Chemistry |
Free Radicals |
Polymerization
|
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
|
Greenhouse Gases and Non-gray Behavior J. C. Jones
Greenhouse gases feature in many courses in applied chemistry as well as in courses on environmental science, atmospheric chemistry, and so on. We hear a great deal about such matters from the media. A more classical topic which first-year chemistry students will learn about in the physical chemistry component of their program is the black body concept and the StefanBoltzmann law. Recently in teaching about greenhouse gases to MSc students I have thought of a link between the topical and classical matters that is pedagogically interesting and might be of value to others teaching in this subject area.
Jones, J. C. J. Chem. Educ. 2005, 82, 837.
Atmospheric Chemistry |
Gases
|
Turning on the Light Patricia B. O'Hara, Carol Engelson, and Wayne St. Peter
This activity explores some of the fundamental properties of light spontaneously emitted from glow-in-the-dark stickers, wintergreen-flavored hard candies, and a chlorophyll solution made from spinach leaves. Students are led to explore the different properties of fluorescence, phosphorescence, and triboluminescence.
O'Hara, Patricia B.; Engelson, Carol; St. Peter, Wayne. J. Chem. Educ. 2005, 82, 48A.
Fluorescence Spectroscopy |
Photochemistry
|
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
|
Fractional Distillation of Air and Other Demonstrations with Condensed Gases Maria Oliver-Hoyo and William L. Switzer, III
This demonstration builds upon the commonly performed liquefaction of air not only to show the presence of nitrogen and oxygen, but also the presence of two other components, carbon dioxide and water. Several extensions are suggested: one to show boiling point elevation in solution and another to show the elevation of both boiling point and sublimation point with pressure. No special apparatus is required permitting presentations to audiences in a variety of settings. These demonstrations give the opportunity to discuss properties of gases, solution chemistry, and phase equilibria.
Oliver-Hoyo, Maria; Switzer, William L., III. J. Chem. Educ. 2005, 82, 251.
Gases |
Qualitative Analysis |
Atmospheric Chemistry |
Phases / Phase Transitions / Diagrams |
Separation Science
|
On the Buoyancy of a Helium-Filled Balloon John E. Harriman
It is shown by expansion of the exponential in the barometric formula that the forces due to pressure acting on a balloon are of the form (PV/RT)Mg and that results agree with those suggested by Archimedes principle. Einstein's equivalence principal provides an answer to what balloons will do in an accelerated car.
Harriman, John E. J. Chem. Educ. 2005, 82, 246.
Atmospheric Chemistry |
Gases |
Kinetic-Molecular Theory |
Physical Properties
|
A Substitute for “Bromine in Carbon Tetrachloride” Joshua M. Daley and Robert G. Landolt
Benzotrifluoride (BTF) is a suitable solvent substitute for carbon tetrachloride in experiments requiring application of bromine (Br2) in free radical or addition reactions with organic substrates. A 1 M solution of Br2 in BTF may be used to distinguish hydrocarbons based on the ease of abstraction of hydrogen atoms in thermally or light-induced free radical substitutions. Efficacy of minimization of solvent use, by aliquot addition to neat samples, has been established.
Daley, Joshua M.; Landolt, Robert G. J. Chem. Educ. 2005, 82, 120.
Alkenes |
Free Radicals |
Green Chemistry |
Qualitative Analysis |
Reactions
|
Chemiluminescent Oscillating Demonstrations: The Chemical Buoy, the Lighting Wave, and the Ghostly Cylinder Hernán E. Prypsztejn
In this article, a chemiluminescent oscillating reaction is presented in which a chemiluminescent substance (luminol) interacts with a chemical oscillator producing an oscillating chemiluminescence. This demonstration has been successfully performed in basic chemistry courses to arouse interest and curiosity in students. This demonstration fascinates audiences and in courses for science majors it is an excellent way to introduce complex concepts such as far-from-equilibrium conditions, nonlinear dynamics and bifurcation, and chaos theories.
Prypsztejn, Hernán E. J. Chem. Educ. 2005, 82, 53.
Photochemistry
|
Turning on the Light: Lessons from Luminescence Patricia B. OHara, Carol Engelson, and Wayne St. Peter
The goal of this article is to provide secondary school science teachers with a background in an array of luminescent phenomena including fluorescence, phosphorescence, and chemiluminescence that will enable them to teach their students fundamental properties of light and matter. Instructions for building and operating a simple spectrofluorometer and five detailed lesson plans are provided in the Supplemental Material for experiments that utilize these processes.
O'Hara, Patricia B.; Engelson, Carol; St. Peter, Wayne. J. Chem. Educ. 2005, 82, 49.
Fluorescence Spectroscopy |
Forensic Chemistry |
Photochemistry |
Atomic Properties / Structure
|
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
|
Water in the Atmosphere Joel M. Kauffman
None of eight college-level general chemistry texts gave a mean value for water in the atmosphere, despite its being the third most prevalent constituent at about 1.5% by mass as vapor and about 2% if clouds and ice crystals are included. The importance of water as a greenhouse gas was omitted or marginalized by five of the eight texts. An infrared spectrum of humid air was determined to demonstrate that water vapor, because of its higher concentration, was more absorptive than carbon dioxide. The cooling effect of clouds, or other influences on the Earth's albedo, were not mentioned in most of the texts. These pervasive errors should be corrected in new or future editions of textbooks.
Kauffman, Joel M. J. Chem. Educ. 2004, 81, 1229.
Atmospheric Chemistry |
Gases |
Green Chemistry |
IR Spectroscopy
|
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
|
Triboluminescent Crystals from the Microwave Oven. What Is the Proper Regulation of Controlled Substances at Educational Institutions? Bruce Baldwin
Concerns the use of controlled substances in the laboratory.
Baldwin, Bruce. J. Chem. Educ. 2004, 81, 1121.
Photochemistry |
Laboratory Management
|
Triboluminescent Crystals from the Microwave Oven. In California, N-Acetylanthranilic Acid and Anthranilic Acid Are Controlled Substances—Have You Been Using Them Illegally? Arnold L. Rheingold
Concerns the use of controlled substances in the laboratory.
Rheingold, Arnold L. J. Chem. Educ. 2004, 81, 1121.
Photochemistry |
Laboratory Management
|
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
|
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
|
Why Does a Helium-Filled Balloon "Rise"? Richard W. Ramette
The article is a lighthearted, conversational exploration of the microscopic basis for Archimedes principle. The principle is discussed in terms of molecular collisions and density gradients in a gravitational field.
Ramette, Richard W. J. Chem. Educ. 2003, 80, 1149.
Atmospheric Chemistry |
Gases |
Kinetic-Molecular Theory |
Physical Properties
|
National Chemistry Week 2003: Earth's Atmosphere and Beyond. JCE Resources for Chemistry and the Atmosphere Erica K. Jacobsen
This annotated bibliography collects the best that past issues of the Journal of Chemical Education have to offer for use with this year's National Chemistry Week theme: Earth's Atmosphere and Beyond. Each article has been characterized as a demonstration, experiment, activity, informational, or software/video item.
Jacobsen, Erica K. J. Chem. Educ. 2003, 80, 1106.
Atmospheric Chemistry |
Applications of Chemistry
|
A Photolithography Laboratory Experiment for General Chemistry Students Adora M. Christenson, Gregory W. Corder, Thomas C. DeVore, and Brian H. Augustine
A photolithography laboratory experiment for general chemistry that introduces materials science and the production of microfabricated devices.
Christenson, Adora M.; Corder, Gregory W.; DeVore, Thomas C.; Augustine, Brian H. J. Chem. Educ. 2003, 80, 183.
Kinetics |
Materials Science |
Photochemistry |
Spectroscopy
|
Use of Chloroisocyanuarates for Disinfection of Water: Application of Miscellaneous General Chemistry Topics Gabriel Pinto and Brian Rohrig
Using the chlorination of water (using sodium dichloroisocyanurate and trichloroisocyanuric acid) to develop general chemistry concepts; includes question for students and answers.
Pinto, Gabriel; Rohrig, Brian. J. Chem. Educ. 2003, 80, 41.
Stoichiometry |
Water / Water Chemistry |
Applications of Chemistry |
Photochemistry
|
A Demonstration of Acid Rain and Lake Acidification: Wet Deposition of Sulfur Dioxide Lisa M. Goss
Demonstration of the wet deposition of sulfur dioxide in the atmosphere.
Goss, Lisa M. J. Chem. Educ. 2003, 80, 39.
Acids / Bases |
Atmospheric Chemistry
|
Triboluminescent Crystals from the Microwave Oven Bruce W. Baldwin and David M. Wilhite
Procedure for producing triboluminescent crystals in a microwave oven.
Baldwin, Bruce W.; Wilhite, David M. J. Chem. Educ. 2002, 79, 1344.
Aromatic Compounds |
Crystals / Crystallography |
Synthesis |
Photochemistry
|
Effects of Changing Climate on Weather and Human Activities (by Kevin E. Trenberth, Kathleen Miller, Linda Mearns, and Steven Rhodes) Evan T. Williams
A short supplement focussed on the effects of changing climate on weather and human activities.
Williams, Evan T. J. Chem. Educ. 2002, 79, 433.
Atmospheric Chemistry |
Nonmajor Courses |
Applications of Chemistry
|
Stratospheric Ozone Depletion (by Ann M. Middlebrook and Margaret A. Tolbert) Evan T. Williams
A short supplement focussed on stratospheric ozone depletion.
Williams, Evan T. J. Chem. Educ. 2002, 79, 433.
Atmospheric Chemistry |
Nonmajor Courses |
Applications of Chemistry
|
Naturally Dangerous: Surprising Facts about Food, Health, and the Environment (by James P. Collman) Harold H. Harris
Chemist's perspective on the topics of food, vitamins and minerals, herbal remedies, cancer and the environment, global warming, acid rain, ozone, and radiation.
Harris, Harold H. J. Chem. Educ. 2002, 79, 35.
Nonmajor Courses |
Consumer Chemistry |
Food Science |
Atmospheric Chemistry |
Nuclear / Radiochemistry |
Vitamins |
Applications of Chemistry
|
Putting UV-Sensitive Beads to the Test Terre Trupp
Explores the temperature behavior of UV-sensitive beads and investigates the effectiveness of sunscreens.
Trupp, Terre. J. Chem. Educ. 2001, 78, 648A.
Atomic Properties / Structure |
Kinetics |
Applications of Chemistry |
Consumer Chemistry |
Photochemistry
|
Identifying Deficiencies in the Environmental Chemistry Educational Literature Thi Hoa Tran, Stephen W. Bigger, Tony Kruger, John D. Orbell, Saman Buddhadasa, and Sebastian Barone
Study of chemistry textbooks and literature for materials relating to environmental chemistry, including water, air , and soil; and degree of integration of four traditional areas of chemistry (analytical, physical, inorganic, and organic) into environmental chemistry laboratory experiments.
Tran, Thi Hoa; Bigger, Stephen W.; Kruger, Tony; Orbell, John D.; Buddhadasa, Saman; Barone, Sebastian. J. Chem. Educ. 2001, 78, 1693.
Agricultural Chemistry |
Learning Theories |
Atmospheric Chemistry
|
Cigarette Smoke Analysis Using an Inexpensive Gas-Phase IR Cell N. Garizi, A. Macias, T. Furch, R. Fan, P. Wagenknecht, and K. A. Singmaster
A PVC gas cell used to collect and analyze cigarette smoke and car exhaust through IR spectroscopy.
Garizi, N.; Macias, A.; Furch, T.; Fan, R.; Wagenknecht, P.; Singmaster, K. A. J. Chem. Educ. 2001, 78, 1665.
Atmospheric Chemistry |
IR Spectroscopy |
Fourier Transform Techniques |
Laboratory Equipment / Apparatus |
Qualitative Analysis
|
Visualizing the Photochemical Steady State with UV-Sensitive Beads (re J. Chem. Educ. 2001, 77, 648A-648B) Jerry A. Bell
Analysis of the temperature dependence of the color intensity of UV-sensitive beads.
Bell, Jerry A. J. Chem. Educ. 2001, 78, 1594.
Atomic Properties / Structure |
Kinetics |
Photochemistry |
Chemometrics
|
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
|
Chemiluminescence of Tris(2,2'-bipyridyl)ruthenium(II): A Glowing Experience Ed Bolton and Mark M. Richter
When Mg powder or turnings are added to a CH3CN-H2O (50:50 v/v) solution mixture containing 1 mM Ru(bpy)32+ and 40 mM S2O82- (CH3CN = acetonitrile, bpy = 2,2'-bipyridine, S2O82 = peroxydisulfate) at pH 1.2, a bright orange emission results that is easily visible in a darkened room.
Bolton, Ed; Richter, Mark M. J. Chem. Educ. 2001, 78, 47.
Atomic Properties / Structure |
Photochemistry
|
A Simple Protein Purification and Folding Experiment for General Chemistry Laboratory Robert Bowen, Richard Hartung, and Yvonne M. Gindt
A simple procedure for the crude purification of a chromoprotein suitable for a general chemistry laboratory. The protein, phycocyanin, is easy to purify and very stable. It contains a chromophore that can serve to report the integrity of the protein structure: the chromoprotein is dark blue when the protein is folded in its native conformation, and it turns a very pale blue when the protein is unfolded or denatured.
Bowen, Robert ; Hartung, Richard; Gindt, Yvonne M. J. Chem. Educ. 2000, 77, 1456.
Noncovalent Interactions |
Photochemistry |
Proteins / Peptides |
UV-Vis Spectroscopy
|
A Novel Experiment for Fast and Simple Determination of the Oxygen Content in the Air Metodija Najdoski and Vladimir M. Petrusevski
The reaction between nitric oxide (NO) and oxygen is used for determination of the oxygen content in the air. The nitrogen dioxide thus produced is dissolved in water. The volume decrease of the gas enables quick and accurate enough determination of the O2 content. The results of 20 measurements give %O2 = 21.04 0.63.
Najdoski, Metodija; Petrusevski, Vladimir M. J. Chem. Educ. 2000, 77, 1447.
Gases |
Qualitative Analysis |
Quantitative Analysis |
Atmospheric Chemistry
|
Determination of the Oxygen Content of Air Per Christian Braathen
Determining the oxygen content of air using vinegar and steel wool.
Braathen, Per Christian. J. Chem. Educ. 2000, 77, 1410.
Atmospheric Chemistry |
Gases |
Quantitative Analysis
|
Photochemistry and Pinhole Photography: An Interdisciplinary Experiment Angeliki A. Rigos and Kevin Salemme
This interdisciplinary activity combines chemistry and art through the construction and use of a pinhole camera. We focused on the chemistry of the black and white photographic process as the science component of this activity. The reactions involved are good examples of photochemistry and multiphase chemical reactions, since the light sensitive materials (silver halides) are in the form of a gelatin emulsion of microscopic crystals.
Rigos, Angeliki A.; Salemme, Kevin. J. Chem. Educ. 1999, 76, 736A.
Metals |
Photochemistry |
Oxidation State |
Nonmajor Courses |
Applications of Chemistry
|
Remediation of Water Contaminated with an Azo Dye: An Undergraduate Laboratory Experiment Utilizing an Inexpensive Photocatalytic Reactor John A. Bumpus, Jennifer Tricker, Ken Andrzejewski, Heather Rhoads, and Matthew Tatarko
The construction and use of an inexpensive photocatalytic reactor that utilizes titanium dioxide as the photocatalyst for wastewater treatment is described. In these experiments and in supplementary material, students are made aware that a variety of techniques have been developed to treat wastewaters, including those generated by the chemical industry. Water contaminated with the azo dye Congo Red was selected as an example of how one might treat contaminated water from a textile manufacturing facility.
Bumpus, John A.; Tricker, Jennifer; Andrzejewski, Ken; Rhoads, Heather; Tatarko, Matthew. J. Chem. Educ. 1999, 76, 1680.
Photochemistry |
Dyes / Pigments |
Laboratory Equipment / Apparatus |
Applications of Chemistry |
Water / Water Chemistry
|
Lightstick Kinetics Charles E. Roser and Catherine L. McCluskey
This experiment determines the energy of activation of the luminescent reaction in a lightstick by measuring the light intensity relative to temperature using Vernier light and temperature sensors, a Texas Instruments CBL interface, and a TI-82/83 graphing calculator.
Roser, Charles E.; McCluskey, Catherine L. J. Chem. Educ. 1999, 76, 1514.
Kinetics |
Photochemistry
|
UV Catalysis, Cyanotype Photography, and Sunscreens Glen D. Lawrence and Stuart Fishelson
This laboratory experiment is intended for a chemistry course for non-science majors. The experiment utilizes one of the earliest photographic processes, the cyanotype process, to demonstrate UV catalysis of chemical reactions.
Lawrence, Glen D.; Fishelson, Stuart. J. Chem. Educ. 1999, 76, 1199.
Nonmajor Courses |
Photochemistry |
Catalysis
|
Relative Humidity R. Bruce Martin
Daily we hear reports of relative humidity, yet most students remain unfamiliar with its import. This short article defines and describes the concept at several levels. A new, general interest, isobaric plot directly indicates the dependence of relative humidity on temperature.
Martin, R. Bruce. J. Chem. Educ. 1999, 76, 1081.
Consumer Chemistry |
Gases |
Nonmajor Courses |
Water / Water Chemistry |
Atmospheric Chemistry
|
The Persistence of the Candle-and-Cylinder Misconception James P. Birk and Anton E. Lawson
There is a persistent misconception that when a lighted candle is supported in a container of water and a closed cylinder is lowered over the candle, the candle is extinguished after a time by complete consumption of the oxygen in the cylinder, with a volume change corresponding to the amount of oxygen in the air. This misconception has appeared in the literature periodically for many years. Here, we present a number of experiments that refute this misconception.
Birk, James P.; Lawson, Anton E. J. Chem. Educ. 1999, 76, 914.
Gases |
Atmospheric Chemistry |
Quantitative Analysis |
Reactions
|
Determination of Percent Oxygen in Air (author's reply) Fang, Chin-Hsiang
Claim that a simple combustion reaction can be used to show the % oxygen in air.
Fang, Chin-Hsiang J. Chem. Educ. 1999, 76, 898.
Atmospheric Chemistry
|
Determination of Percent Oxygen in Air Parsons, Leonard
Claim that a simple combustion reaction cannot be used to show the % oxygen in air.
Parsons, Leonard J. Chem. Educ. 1999, 76, 898.
Atmospheric Chemistry
|
Correction to "How Mathematics Figures in Chemistry: Some Examples" (J. Chem. Educ. 1999, 76, 258-267) John Andraos
With respect to the widths of parabolas discussed in Problem 3, shallow wells should be characterized as having the a parameter between 0 and 1 (0 < a < 1). The words "deep" and "shallow" appearing in the paragraph following eq 17 are incorrectly transposed.
Andraos, John. J. Chem. Educ. 1999, 76, 897.
Mass Spectrometry |
Photochemistry
|
Correction to The Bobbing Bird: Correction to J. Chem. Educ. 1996, 73, 355 H. D. Gesser
Difficulties in improving safety of original demonstration.
Gesser, Hyman D. J. Chem. Educ. 1999, 76, 757.
Atmospheric Chemistry
|
Advertising in this Issue
Caution when burning hydrogen / oxygen mixtures.
J. Chem. Educ. 1999, 76, 757.
Atmospheric Chemistry
|
Pushing the Rainbow: Frontiers in Color Chemistry; Light and Color in Chemistry; Report on Two American Chemical Society Presidential Events Nancy S. Gettys
On Sunday March 21, 1999, the 217th ACS National Meeting in Anaheim, California sponsored two Presidential Events, "Pushing the Rainbow: Frontiers in Color Chemistry" and "Light and Color in Chemistry". The events included 10 exceptional and very different speakers who explored various aspects of the importance of light and color in chemistry and chemistry teaching, in other sciences, and in art and human culture.
Gettys, Nancy S. J. Chem. Educ. 1999, 76, 737.
Conferences |
Photochemistry |
Materials Science |
Applications of Chemistry
|
Chromatographic Separation Techniques for Undergraduates Darwin B. Dahl, John T. Riley, and Thomas K. Green
Over the past several years the Chemistry Department at Western Kentucky University (WKU) has sought to strengthen its undergraduate program departmental through acquisition of FT-NMR, fluorescence, electrochemical, thermal analysis, laser Raman, microscale organic, and polymer laboratory instrumentation; this has enabled the department to build a successful undergraduate program.
Dahl, Darwin B.; Riley, John T.; Green, Thomas K. J. Chem. Educ. 1998, 75, 1209.
Separation Science |
Chromatography |
Fourier Transform Techniques |
NMR Spectroscopy |
Raman Spectroscopy |
Electrochemistry |
Photochemistry |
Thermal Analysis |
Microscale Lab
|
Thermal Physics (and Some Chemistry) of the Atmosphere Stephen K. Lower
An exploration of how the temperature of the atmosphere varies with altitude can serve as a useful means of illustrating some important principles relating to the behavior of gases and to the absorption and transformation of radiant energy.
Lower, Stephen K. J. Chem. Educ. 1998, 75, 837.
Atmospheric Chemistry |
Gases
|
Saving Your Students' Skin. Undergraduate Experiments that Probe UV Protection by Sunscreens and Sunglasses James R. Abney and Bethe A. Scalettar
This article describes absorption spectroscopy experiments that illustrate the mechanism of action of sunscreens and sunglasses and that highlight the differences between different products. The experiments are well suited to incorporation into an undergraduate science laboratory and will expose students to absorption phenomena in a familiar context with substantial environmental and medical relevance.
Abney, James R.; Scalettar, Bethe A. J. Chem. Educ. 1998, 75, 757.
Photochemistry |
UV-Vis Spectroscopy |
Atmospheric Chemistry |
Applications of Chemistry |
Spectroscopy
|
Demonstrating Electron Transfer and Nanotechnology: A Natural Dye-Sensitized Nanocrystalline Energy Converter Greg P. Smestad and Michael Gratzel
A unique solar cell fabrication procedure has been developed using natural anthocyanin dyes extracted from berries. It can be reproduced with a minimum amount of resources in order to provide an interdisciplinary approach for lower-division undergraduate students learning the basic principles of biological extraction, physical chemistry, and spectroscopy as well as environmental science and electron transfer.
Smestad, Greg P.; Grtzel, Michael. J. Chem. Educ. 1998, 75, 752.
Photochemistry |
Plant Chemistry |
Electrochemistry |
Atomic Properties / Structure |
Dyes / Pigments |
Nanotechnology |
Separation Science |
Spectroscopy
|
Photocatalytic Degradation of a Gaseous Organic Pollutant Jimmy C. Yu and Linda Y. L. Chan
A simple and effective method to demonstrate the phenomenon of photocatalytic degradation of a gaseous organic pollutant was developed. Titanium dioxide (anatase) was used as the photocatalyst, and sunlight was found to be an effective light source for the activation of TiO2. The organic pollutant degrade in this demonstration was a common indoor air pollutant, dichloromethane.
Yu, Jimmy C.; Chan, Linda Y. L. J. Chem. Educ. 1998, 75, 750.
Catalysis |
Photochemistry |
Atmospheric Chemistry |
Applications of Chemistry
|
Chemical Behavior Paul G. Jasien
In order to increase student understanding of the seemingly confusing behavior of chemical substances involved in environmental chemistry, an analogy between chemical and human behavior is presented. The analogy focuses on how the same individual can behave differently due to his/her social surroundings.
Jasien, Paul G. J. Chem. Educ. 1997, 74, 943.
Molecular Properties / Structure |
Nonmajor Courses |
Consumer Chemistry |
Atmospheric Chemistry
|
The Spectrophotometric Analysis and Modeling of Sunscreens Christina Walters, Allen Keeney, Carl T. Wigal, Cynthia R. Johnston, and Richard D. Cornelius
Sunscreens and their SPF (Sun Protection Factor) values are the focus of this experiment that includes spectrophotometric measurements and molecular modeling. This experiment lets students explore which compounds have the potential to function as sunscreen agents and thereby see the importance of a knowledge of chemistry to the formulation of household items.
Walters, Christina; Keeney, Allen; Wigal, Carl T.; Johnston, Cynthia R.; Cornelius, Richard D. J. Chem. Educ. 1997, 74, 99.
Photochemistry |
Consumer Chemistry |
Applications of Chemistry |
Molecular Modeling
|
A Simple and Low-Cost Air Sampler Sashi Saxena Ratna and Pramrod Upadhyay
In this article, an air sampler kit is presented that can be assembled from locally available household materials. The reliability of the sampler kit is also established.
Ratna, Shashi Saxena; Upadhyay, Pramod. J. Chem. Educ. 1996, 73, 787.
Atmospheric Chemistry |
Laboratory Equipment / Apparatus |
Quantitative Analysis
|
Photosynthesis: Why Does It Occur? J. J. MacDonald
Explanation of why photosynthesis occurs; stating that it is merely the reverse of respiration is misleading.
MacDonald, J. J. J. Chem. Educ. 1995, 72, 1113.
Plant Chemistry |
Reactions |
Thermodynamics |
Photochemistry |
Electrochemistry
|
The Environmental Chemistry of Trace Atmospheric Gases William C. Trogler
Information regarding the composition of trace gases in the Earth's atmosphere, changes in these amounts, their sources, and potential future impact on the environment.
Trogler, William C. J. Chem. Educ. 1995, 72, 973.
Gases |
Atmospheric Chemistry
|
Methanol Cannon Demonstrations Revisited David A. Dolson, Michael E. Dolson, Michael R. Hall, Rubin Battino, Lisa S. Jutte
Demonstrations involving methanol cannons and chain reactions.
Dolson, David A.; Dolson, Michael E.; Hall, Michael R.; Battino, Rubin; Jutte, Lisa S. J. Chem. Educ. 1995, 72, 732.
Free Radicals |
Reactions |
Alcohols
|
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
|
Introducing Atmospheric Reactions: A Systematic Approach for Students Baird, N. Colin
Outline of the dominant reactions that occur in air, particularly with regard to atmospheric pollutants.
Baird, N. Colin J. Chem. Educ. 1995, 72, 153.
Photochemistry |
Free Radicals |
Atmospheric Chemistry
|
What Color is it? Earles, Thomas T.
Using fluorescein and bromphenol blue to demonstrate fluorescence and absorption.
Earles, Thomas T. J. Chem. Educ. 1994, 71, 768.
Photochemistry |
Dyes / Pigments
|
Inventory Control: Sampling and Analyzing Air Pollution: An Apparatus Suitable for Use in Schools Rockwell, Dean M.; Hansen, Tony
Two variations of an air sampler and analyzer that are inexpensive, easy to construct, and highly accurate.
Rockwell, Dean M.; Hansen, Tony J. Chem. Educ. 1994, 71, 318.
Atmospheric Chemistry |
Laboratory Equipment / Apparatus |
Quantitative Analysis
|
Photon-initiated hydrogen-chlorine reaction: A student experiment at the microscale level Egolf, Leanne M.; Keiser, Joseph T.
This lab offers a way to integrate the principles of thermodynamics and kinetics as well as other valuable instrumental methods.
Egolf, Leanne M.; Keiser, Joseph T. J. Chem. Educ. 1993, 70, A208.
Covalent Bonding |
Ionic Bonding |
Electrochemistry |
Free Radicals |
Microscale Lab |
Thermodynamics |
Kinetics
|
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
|
Photodegradation of methylene blue: Using solar light and semiconductor (TiO2) Nogueira, Raquel F. P.; Jardim, Wilson F.
An experiment that can be used to introduce or explore concepts such as photochemistry, semiconductors, and kinetics.
Nogueira, Raquel F. P.; Jardim, Wilson F. J. Chem. Educ. 1993, 70, 861.
Semiconductors |
Photochemistry |
Kinetics |
Catalysis |
MO Theory
|
Proper glove box etiquette Roper, Gerald C.
Author defends his activity to a critique raised in an earlier letter in this Journal.
Roper, Gerald C. J. Chem. Educ. 1993, 70, 520.
Gases |
Atmospheric Chemistry
|
Keeping chemistry "light" Silverman, L. Phillip; Bunn, Barbara B.
Photochemically oriented demonstrations and the humor behind the symbol for phosphorus.
Silverman, L. Phillip; Bunn, Barbara B. J. Chem. Educ. 1993, 70, 405.
Photochemistry
|
Sodium D line emission from pickles Appling, Jeffrey R.; Yonke, Fredrick J.; Edgington, Richard A.; Jacobs, Steve
Presentation of an alternate technique to generate visible atomic emission of sodium atoms that should be useful in a classroom demonstration.
Appling, Jeffrey R.; Yonke, Fredrick J.; Edgington, Richard A.; Jacobs, Steve J. Chem. Educ. 1993, 70, 250.
Photochemistry
|
A Simple Demonstration of the Greenhouse Effect Adelhelm, Manfred; Hohn, Ernst-Gerhard
A simple experiment to demonstrate the principle of the greenhouse effect.
Adelhelm, Manfred; Hohn, Ernst-Gerhard J. Chem. Educ. 1993, 70, 73.
Photochemistry |
Green Chemistry
|
A simple and colorful demonstration of light-catalyzed bromination of an alkane Stevens, Malcolm P.
Light-catalyzed bromination of an alkane.
Stevens, Malcolm P. J. Chem. Educ. 1992, 69, 1028.
Catalysis |
Alkanes / Cycloalkanes |
Photochemistry |
Reactions
|
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
|
A multicolored luminescence demonstration Smith, Paul E.; Johnston, Kevin; Reason, David M.; Bodner, George M.
Materials and apparatus to produce a range (red-to-white-to-blue) of luminescent colors.
Smith, Paul E.; Johnston, Kevin; Reason, David M.; Bodner, George M. J. Chem. Educ. 1992, 69, 827.
Photochemistry
|
Free-radical polymerization of acrylamide Silversmith, Ernest F.
A rapid and foolproof thermal polymerization.
Silversmith, Ernest F. J. Chem. Educ. 1992, 69, 763.
Free Radicals |
Polymerization |
Reactions
|
Simple analogies in general chemistry. McCullough, Thomas.
Great Plains Indians and Dalton's Law; bullets, BB's, and the photoelectric effect; and high velocity bullets and high frequency light.
McCullough, Thomas. J. Chem. Educ. 1992, 69, 543.
Gases |
Photochemistry
|
Using the colorimeter to illustrate the wave nature of light and the relationship between color and light absorbed Malerich, Charles J.
This note describes a short simple experiment that is useful for teaching the wave nature of light and the relationship between color and the visible spectrum of a substance.
Malerich, Charles J. J. Chem. Educ. 1992, 69, 163.
Photochemistry
|
A bulletin board demonstration on humidity Smith, Kurt; Solomon, Sally
A demonstration of the color changes of cobalt chloride with relative humidity is described in this note.
Smith, Kurt; Solomon, Sally J. Chem. Educ. 1991, 68, 1039.
Atmospheric Chemistry |
Equilibrium
|
Bright-line spectrum analogy Samsa, Richard A.
An analogy for bright-line emission using common items, such as sand and an eraser.
Samsa, Richard A. J. Chem. Educ. 1991, 68, 412.
Atomic Properties / Structure |
Photochemistry |
Quantum Chemistry
|
Acid rain experiment and construction of a simple turbidity meter Betterton, Eric A.
Construction of a simple turbidity meter in order to furnish more atmospheric chemistry experiments in the freshman and sophomore level chemistry lab.
Betterton, Eric A. J. Chem. Educ. 1991, 68, 254.
Atmospheric Chemistry |
Laboratory Equipment / Apparatus |
Green Chemistry
|
Alternative flame test procedures Barnes, Zexia K.
An alternative to using Nichrome wire where the limited volume of solution delivered makes it difficult to see the color in the flame.
Barnes, Zexia K. J. Chem. Educ. 1991, 68, 246.
Atomic Properties / Structure |
Quantum Chemistry |
Photochemistry
|
St. Patrick's day special - A boron flame shamrock Earles, Thomas T.
When you prepare this quick, simple demonstration, be sure you prepare a double batch, as students will demand repeats.
Earles, Thomas T. J. Chem. Educ. 1991, 68, 57.
Photochemistry
|
Photophysics in a disco: Luminescence quenching of quinine Sacksteder, LouAnn; Ballew, R. M.; Brown, Elizabeth A.; Demas, J. N.; Nesselrodt, D.; DeGraff, B. A.
A simple procedure for semiquantitatively examining luminescence quenching using tonic water (contains quinine), table salt, a shot glass, and a black light.
Sacksteder, LouAnn; Ballew, R. M.; Brown, Elizabeth A.; Demas, J. N.; Nesselrodt, D.; DeGraff, B. A. J. Chem. Educ. 1990, 67, 1065.
Photochemistry
|
A classroom demonstration polarimeter Levine, Samuel G.
A demonstration polarimeter that may be assembled in minutes from common laboratory materials; does not require a projection screen or a darkened room.
Levine, Samuel G. J. Chem. Educ. 1990, 67, 1064.
Photochemistry
|
Lessons learned from Lord Rayleigh on the importance of data analysis Larsen, Russell D.
Analysis of the data collected by Lord Rayleigh in association with his discovery of argon presented as a model for scientific inquiry.
Larsen, Russell D. J. Chem. Educ. 1990, 67, 925.
Chemometrics |
Atmospheric Chemistry
|
The H2 + Cl2 explosion as a chemical analogue of the photoelectric effect: A true quantum mechanical demonstration Knox, Kerro
The photochemical hydrogen-chlorine reaction affords a good example of the quantum aspect of light and its interaction with matter.
Knox, Kerro J. Chem. Educ. 1990, 67, 897.
Reactions |
Quantum Chemistry |
Photochemistry
|
Device to describe wave polarization Nicolai, Lidia; Baron, Maximo
A device to show that any type of polarized wave (plane, circular, and elliptical) can be obtained from two coherent planar waves having their vibration planes perpendicular to each other.
Nicolai, Lidia; Baron, Maximo J. Chem. Educ. 1990, 67, 647.
Laboratory Equipment / Apparatus |
Photochemistry
|
Consumer chemistry demonstrations Carberry, Edward; Gonnella, Thomas; Eliason, Robert
Demonstrating the hazards of mixing an acidic cleaner with bleach and the light-absorbing ability of sunscreens.
Carberry, Edward; Gonnella, Thomas; Eliason, Robert J. Chem. Educ. 1989, 66, 1041.
Consumer Chemistry |
Nonmajor Courses |
Photochemistry |
Toxicology
|
Change in optical rotation with wavelength Koubek, Edward; Quinn, H.
Illustrates the effect of an optically active material (Karo corn syrup) on plane-polarized light.
Koubek, Edward; Quinn, H. J. Chem. Educ. 1989, 66, 853.
Photochemistry |
Chirality / Optical Activity
|
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
|
What color are fluorescent solutions? Sturtevant, John L.
The overhead projector is ideally suited to separate the transmission and luminescence spectral properties of solutions.
Sturtevant, John L. J. Chem. Educ. 1989, 66, 511.
Photochemistry
|
The absorption of UV light by ozone Koubek, Edward
Using a low-pressure mercury vapor UV lamp and a recently laundered white cotton sheet as a background, one can produce a shadowgraph of ozone emerging from an ozonator.
Koubek, Edward J. Chem. Educ. 1989, 66, 338.
Atmospheric Chemistry
|
The Australian Academy of Science School Chemistry Project: A new-generation secondary school chemistry course Bucat, R. B.; Cole, A. R. H.
The purpose of this paper is to summarize the philosophies behind the courses described in this paper and the consequent design decisions regarding the selection and sequence of the chemistry content.
Bucat, R. B.; Cole, A. R. H. J. Chem. Educ. 1988, 65, 777.
Atmospheric Chemistry |
Metabolism |
Thermodynamics
|
Remember E = hv is correct only half of the time Leo, Howard, R.
Reminder that the title equation (Planck) is not algebraically correct.
Leo, Howard, R. J. Chem. Educ. 1988, 65, 11.
Chemometrics |
Photochemistry
|
A multicolored luminol-based chemiluminescence demonstration Chalmers, John H., Jr.; Bradbury, Michael W.; Fabricant, Jill D.
Demonstrating a variety of luminescent colors using luminol and different fluorescent compounds.
Chalmers, John H., Jr.; Bradbury, Michael W.; Fabricant, Jill D. J. Chem. Educ. 1987, 64, 969.
Photochemistry
|
Demonstrating the chemistry of air pollution Hollenberg, J. Leland; Stephens, Edgar R.; Pitts, James N., Jr.
Demonstrations regarding the three essential conditions or ingredients for the formation of photochemical smog and involving NO, NO2, unsaturated hydrocarbons, and O3.
Hollenberg, J. Leland; Stephens, Edgar R.; Pitts, James N., Jr. J. Chem. Educ. 1987, 64, 893.
Atmospheric Chemistry |
Photochemistry
|
Percent oxygen in air Martins, George F.
Determines the percentage oxygen in air by reacting steel wool with oxygen.
Martins, George F. J. Chem. Educ. 1987, 64, 809.
Atmospheric Chemistry
|
A spectacular demonstration: 2H2 + O2 -> 2H2O Skinner, James F.
Detonating hydrogen in a copper combustion chamber.
Skinner, James F. J. Chem. Educ. 1987, 64, 545.
Reactions |
Free Radicals
|
A convenient, low-cost method for determining sulfate in acid rain Johns, Nicholas; Longstaff, Stephen J.
Adapting the thoron colorimetric method for determining low sulfate concentrations quickly, simply, and accurately.
Johns, Nicholas; Longstaff, Stephen J. J. Chem. Educ. 1987, 64, 449.
Acids / Bases |
Atmospheric Chemistry |
Quantitative Analysis
|
Acid rain effects on stone monuments Charola, A. Elena
What is acid rain? Which stones are used to make mountains? How are the stones affected by acid rain?
Charola, A. Elena J. Chem. Educ. 1987, 64, 436.
Acids / Bases |
Applications of Chemistry |
Atmospheric Chemistry |
Geochemistry
|
An apparatus for sample degassing and sealing Nicodem, David E.; Marchiori, Roberto
Device that allows the preparation and sealing of low-cost test tubes by inexperienced students.
Nicodem, David E.; Marchiori, Roberto J. Chem. Educ. 1987, 64, 282.
Laboratory Equipment / Apparatus |
Laboratory Management |
Photochemistry
|
Chemical Demonstrations: A Handbook for Teachers of Chemistry, Volume I (Shakhashiri, Bassam Z.) Kauffman, George B.
81 tested demonstrations grouped into 4 chapters: thermochemistry, chemiluminescence, polymers, and color and equilibria of metal ion precipitates and complexes.
Kauffman, George B. J. Chem. Educ. 1985, 62, A31.
Calorimetry / Thermochemistry |
Photochemistry |
Metals
|
Windowsill kinetics: A spectrophotometric study of the photochromism of mercury dithizonate Petersen, Richard L.; Harris, Gaylon L.
Mercury dithizonate undergoes a color change from orange to an intense royal blue upon irradiation with visible light.
Petersen, Richard L.; Harris, Gaylon L. J. Chem. Educ. 1985, 62, 802.
Photochemistry |
Spectroscopy |
Kinetics |
Coordination Compounds |
Raman Spectroscopy
|
Energy interconversions in photosynthesis Bering, Charles L.
Reviews the energetics of the light reactions of photosynthesis.
Bering, Charles L. J. Chem. Educ. 1985, 62, 659.
Photosynthesis |
Photochemistry |
Thermodynamics |
Bioenergetics
|
Chain reaction wheel: An approach to free radical reactions Monroe, Manus; Abrams, Karl
Using a "chain reaction wheel" to help students understand the mechanism of free radical reactions.
Monroe, Manus; Abrams, Karl J. Chem. Educ. 1985, 62, 467.
Free Radicals |
Reactions |
Mechanisms of Reactions
|
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
|
Why isn't my rain as acidic as yours? Zajicek, O. T.
Calculating of pH values of acid rain and comparisons to uncontaminated samples.
Zajicek, O. T. J. Chem. Educ. 1985, 62, 158.
Acids / Bases |
Atmospheric Chemistry |
pH |
Chemometrics
|
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
|
Photon-initiated hydrogen-chloride reaction: Improvements on a lecture demonstration Ramette, R. W.
Improvements to the photon-initiated reaction between hydrogen and chlorine gas - the gas mixture is generated by the electrolysis of 8 M HCl.
Ramette, R. W. J. Chem. Educ. 1984, 61, 722.
Photochemistry |
Reactions
|
Chemiluminescence Gill, Steven K.; Brice, Luther K.
When exposed to moist air, tetrakis(dimethylamino)ethylene gives off a vivid blue-green luminescence.
Gill, Steven K.; Brice, Luther K. J. Chem. Educ. 1984, 61, 713.
Photochemistry
|
Chemical storage of solar energy using an old color change demonstration Spears, L. Gene, Jr.; Spears, Larry G.
The results of a student research project that could be used as an experiment to illustrate the potential of hydrates salts for solar energy storage.
Spears, L. Gene, Jr.; Spears, Larry G. J. Chem. Educ. 1984, 61, 252.
Photochemistry |
Coordination Compounds |
Solutions / Solvents |
Aqueous Solution Chemistry |
Calorimetry / Thermochemistry
|
Photoelectrochemical solar cells McDevitt, John T.
An introduction to photoelectrochemical cells and topics pertaining to solar energy conversion.
McDevitt, John T. J. Chem. Educ. 1984, 61, 217.
Photochemistry |
Electrochemistry |
Electrolytic / Galvanic Cells / Potentials |
Semiconductors |
Applications of Chemistry
|
The density and apparent molecular weight of air Harris, Arlo D.
Simple procedure for determining the density and apparent molecular weight of air.
Harris, Arlo D. J. Chem. Educ. 1984, 61, 74.
Atmospheric Chemistry |
Gases |
Molecular Properties / Structure |
Physical Properties
|
Enduring distributions that deny Boltzmann Nash, Leonard K.
Examines two practical steady- state distributions: the atmosphere and its lapse rate and the ocean and its vertical quasi-uniformity.
Nash, Leonard K. J. Chem. Educ. 1984, 61, 22.
Atmospheric Chemistry |
Gases
|
The chemical oceanographer Abel, Robert B.
Oceanography holds fascinating subject matter for students learning chemistry.
Abel, Robert B. J. Chem. Educ. 1983, 60, 221.
Water / Water Chemistry |
Food Science |
Geochemistry |
Atmospheric Chemistry |
Drugs / Pharmaceuticals |
Applications of Chemistry
|
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
|
A fluorescence lecture demonstration Bozzelli, Joseph W.
A fluorescence demonstration can be related to several aspects of molecular theory and quantized energy levels; suggests eight different fluorescent dye solutions.
Bozzelli, Joseph W. J. Chem. Educ. 1982, 59, 787.
Photochemistry |
Atomic Properties / Structure |
Molecular Properties / Structure |
Quantum Chemistry |
Dyes / Pigments
|
The kinetics of photographic development: A general chemistry experiment Byrd, J. E.; Perona, M. J.
An experiment that uses black and white photographic equipment to illustrate the determination of reaction rate, kinetic order of reactant, and activation energy.
Byrd, J. E.; Perona, M. J. J. Chem. Educ. 1982, 59, 335.
Kinetics |
Applications of Chemistry |
Photochemistry |
Rate Law
|
Ignition of magnesium in porcelain Feinstein, H. I.
Demonstrating the presence of nitrogen in air without ruining the porcelain glaze of a crucible.
Feinstein, H. I. J. Chem. Educ. 1982, 59, 159.
Laboratory Management |
Atmospheric Chemistry |
Quantitative Analysis
|
The sunset demonstration - A variation May, Jeffrey C.
This demonstration uses no solutions - only a lamp and a stack of about 20 sheets of white paper.
May, Jeffrey C. J. Chem. Educ. 1982, 59, 57.
Photochemistry
|
Stormy weather Taylor, Thomas E.
Question regarding the formation of rain clouds and the exothermic process of condensation.
Taylor, Thomas E. J. Chem. Educ. 1980, 57, 732.
Thermodynamics |
Atmospheric Chemistry |
Water / Water Chemistry |
Phases / Phase Transitions / Diagrams
|
Photochemical reactions of tris(oxalato)iron (III): A first year chemistry experiment Baker, A. D.; Casadevell, A.; Gafney, H. D.; Gellender, M.
An experiment based on the photoreduction of potassium ferrioxalate.
Baker, A. D.; Casadevell, A.; Gafney, H. D.; Gellender, M. J. Chem. Educ. 1980, 57, 314.
Photochemistry |
Kinetics |
Reactions
|
Rotation of plane-polarized light: A simple model Hill, Roger R.; Whatley, Barrie G.
A simple model that explains why enantiomers of a chiral compound rotate light in different directions.
Hill, Roger R.; Whatley, Barrie G. J. Chem. Educ. 1980, 57, 306.
Photochemistry |
Molecular Modeling |
Chirality / Optical Activity |
Stereochemistry |
Enantiomers |
Molecular Properties / Structure
|
Polymer photophysics: A negative photoresist Bramwell, Fitzgerald B.; Zadjura, Richard E.; Stemp, Leo; Fahrenholtz, Susan R.; Flowers, John M.
A negative photoresist is formulated that consists of a solution of a photosensitive film-forming polymer or resin that is used to create the negative image of an object on a glass slide.
Bramwell, Fitzgerald B.; Zadjura, Richard E.; Stemp, Leo; Fahrenholtz, Susan R.; Flowers, John M. J. Chem. Educ. 1979, 56, 541.
Photochemistry |
Polymerization
|
Triboluminescence spectroscopy of common candies Zink, Jeffrey I.; Angelos, Rebecca; Hardy, Gordon E.
Experimental methods of measuring spectra and the origins of triboluminescence; includes spectra data for spearmint, peppermint, and wintergreen Lifesavers.
Zink, Jeffrey I.; Angelos, Rebecca; Hardy, Gordon E. J. Chem. Educ. 1979, 56, 413.
Photochemistry |
Spectroscopy
|
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
|
Gasoline vapor: An invisible pollutant Stephens, Edgar R.
An apparatus and procedure to demonstrate the substantial contribution vaporized gasoline makes to hydrocarbon pollution.
Stephens, Edgar R. J. Chem. Educ. 1977, 54, 682.
Physical Properties |
Gases |
Atmospheric Chemistry
|
Questions [and] Answers Campbell, J. A.
330-333. Four questions and their answers; includes comments made by readers on earlier questions 130, 153, 154, 171, 172, 181.
Campbell, J. A. J. Chem. Educ. 1977, 54, 678.
Enrichment / Review Materials |
Atmospheric Chemistry |
Applications of Chemistry |
Electrochemistry |
Electrolytic / Galvanic Cells / Potentials |
Metals |
pH
|
Ultraviolet absorption of ozone Driscoll, Jerry A.
A demonstration of the absorption of ultraviolet radiation by ozone.
Driscoll, Jerry A. J. Chem. Educ. 1977, 54, 675.
Gases |
Atmospheric Chemistry
|
Questions [and] Answers Campbell, J. A.
315-322. Eight questions on subjects related to environmental chemistry and their answers.
Campbell, J. A. J. Chem. Educ. 1977, 54, 498.
Enrichment / Review Materials |
Applications of Chemistry |
Water / Water Chemistry |
Atmospheric Chemistry
|
Great spray can debate Bassow, Herb
A curriculum scenario that takes the problems raised by the technological, economic, and political contexts of the fluorocarbon controversy as its point of focus.
Bassow, Herb J. Chem. Educ. 1977, 54, 371.
Atmospheric Chemistry |
Gases |
Enrichment / Review Materials |
Applications of Chemistry
|
Phosphorescence: A demonstration Bramwell, Fitzgerald B.; Spinner, Mark L.
Making samples for use in phosphorescence demonstrations by including them in a polymer matrix.
Bramwell, Fitzgerald B.; Spinner, Mark L. J. Chem. Educ. 1977, 54, 167.
Photochemistry
|
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
|
UV spectra and cost analysis of suntan lotions: A simple introduction to the use of recording spectrophotometers Evans, George O., II
Students enjoy this experiment which has a Consumer Reports aspect to it.
Evans, George O., II J. Chem. Educ. 1976, 53, 315.
Photochemistry |
Spectroscopy |
UV-Vis Spectroscopy |
Consumer Chemistry
|
The chemistry of color photography Guida, Wayne C.; Raber, Douglas J.
Provides a brief introduction to the chemical reaction involved in color photography and the physical principles that permit those reactions to reproduce colored images.
Guida, Wayne C.; Raber, Douglas J. J. Chem. Educ. 1975, 52, 622.
Photochemistry |
Applications of Chemistry |
Consumer Chemistry |
Dyes / Pigments |
Reactions
|
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
|
Questions [and] Answers Campbell, J. A.
180-183. Four biochemistry questions and their answers.
Campbell, J. A. J. Chem. Educ. 1975, 52, 241.
Enrichment / Review Materials |
Photochemistry |
Photosynthesis |
Acids / Bases |
pH
|
Questions [and] Answers Campbell, J. A.
175-179. Five ecological chemistry questions and their answers.
Campbell, J. A. J. Chem. Educ. 1975, 52, 171.
Enrichment / Review Materials |
Photochemistry |
Catalysis |
Enzymes
|
Nitric acid in rain water Gleason, Geoffrey I.
This trace analysis experiment is based on the conversion of nitrate to nitrite using a cadmium amalgam reductor column.
Gleason, Geoffrey I. J. Chem. Educ. 1973, 50, 718.
Acids / Bases |
Water / Water Chemistry |
Atmospheric Chemistry
|
Questions [and] Answers Campbell, J. A.
Three questions involving an application of chemical principles to interesting topics
Campbell, J. A. J. Chem. Educ. 1973, 50, 356.
Enrichment / Review Materials |
Photosynthesis |
Photochemistry
|
An experiment sequence involving potassium trioxalatoferrate(III) trihydrate Brooks, David W.
This procedure explores the synthesis, analysis, and photochemical reactions of potassium trioxalatoferrate(III) trihydrate.
Brooks, David W. J. Chem. Educ. 1973, 50, 218.
Industrial Chemistry |
Synthesis |
Photochemistry
|
The chemistry of pollution - An experimental course Frank, David L.
Briefly outlines the goals and topics of a course entitled "Chemistry of Air Pollution."
Frank, David L. J. Chem. Educ. 1973, 50, 209.
Atmospheric Chemistry |
Water / Water Chemistry
|
The helix coil transition of DNA Steinert, Roger; Hudson, Bruce
The design and use of a photometer to detect the transition of DNA from the double helix to random coil form.
Steinert, Roger; Hudson, Bruce J. Chem. Educ. 1973, 50, 129.
Molecular Properties / Structure |
Photochemistry |
Spectroscopy |
Laboratory Equipment / Apparatus
|
Questions [and] Answers Campbell, J. A.
Eight questions regarding the application of chemistry and their solutions.
Campbell, J. A. J. Chem. Educ. 1973, 50, 62.
Enrichment / Review Materials |
Applications of Chemistry |
Atmospheric Chemistry
|
The Planck radiation law and the efficiency of a light bulb Lehman, Thomas A.
This experiment uses the Planck equation to determine the efficiency of an ordinary light bulb, expressed as the ratio of visible light energy to total emitted energy.
Lehman, Thomas A. J. Chem. Educ. 1972, 49, 832.
Quantum Chemistry |
Photochemistry
|
Questions [and] Answers Campbell, J. A.
Five questions requiring an application of basic principles of chemistry.
Campbell, J. A. J. Chem. Educ. 1972, 49, 707.
Enrichment / Review Materials |
Applications of Chemistry |
Atmospheric Chemistry |
Astrochemistry
|
Student flowmeters and an air pollution experiment Kohn, Harold W.
Using glass wool as an absorbent for atmospheric contaminants and three simple devices for measuring flow rates of gases.
Kohn, Harold W. J. Chem. Educ. 1972, 49, 643.
Atmospheric Chemistry |
Gases |
Laboratory Equipment / Apparatus
|
Questions [and] Answers Campbell, J. A.
Eight questions requiring the application of basic principles of chemistry.
Campbell, J. A. J. Chem. Educ. 1972, 49, 624.
Enrichment / Review Materials |
Applications of Chemistry |
Atmospheric Chemistry |
Gases
|
A laboratory experiment in fluorescence using the Spectronic 20 Duncan, Robert L.; Kirkpatrick, James W.; Neas, Robert E.
Directions for modifying a Spec 20 to function as an unsophisticated filter fluorometer and using it to measure the fluorescence of quinine sulfate as a function of its concentration.
Duncan, Robert L.; Kirkpatrick, James W.; Neas, Robert E. J. Chem. Educ. 1972, 49, 550.
Photochemistry
|
Questions [and] Answers Campbell, J. A.
Five questions requiring the application of basic principles of chemistry.
Campbell, J. A. J. Chem. Educ. 1972, 49, 414.
Enrichment / Review Materials |
Applications of Chemistry |
Astrochemistry |
Photochemistry
|
Air pollution measurements in the freshman laboratory Suplinkas, Raymond J.
Summarizes the equipment and procedures used to measure air pollution (NO, NO2, and O3) in a freshman chemistry laboratory.
Suplinkas, Raymond J. J. Chem. Educ. 1972, 49, 24.
Atmospheric Chemistry |
Quantitative Analysis
|
Chemical queries. Especially for introductory chemistry teachers Young, J. A.; Malik, J. G.; Parris, Michael
(1) Explains how free radicals differ from species such as NO3- and NH4+. (2) Explains why HI is a stronger acid than HF in aqueous solution. - answer by Parris. (3) Explains that it is possible to alter the half-life of a some radioactive processes through chemical means.
Young, J. A.; Malik, J. G.; Parris, Michael J. Chem. Educ. 1970, 47, 697.
Free Radicals |
Acids / Bases |
Aqueous Solution Chemistry |
Nuclear / Radiochemistry |
Isotopes
|
Understanding a culprit before eliminating it. An application of Lewis acid-base principles to atmospheric SO2 as a pollutant Brasted, Robert C.
The SO2 molecule offers ample opportunities for teaching practical chemistry. [Debut of first run. This feature reappeared in 1986.]
Brasted, Robert C. J. Chem. Educ. 1970, 47, 447.
Acids / Bases |
Lewis Acids / Bases |
Atmospheric Chemistry |
Mechanisms of Reactions |
Reactions |
Applications of Chemistry |
Lewis Structures |
Molecular Properties / Structure
|
Demonstration of photochemistry and the dimerization and trapping of free radicals Silversmith, Ernest F.
This demonstration uses simple equipment and involves a rapid, readily noticeable color change and also illustrates dimerization and the trapping of free radicals.
Silversmith, Ernest F. J. Chem. Educ. 1970, 47, 315.
Photochemistry |
Free Radicals |
Reactions
|
Cloud Caps on High Mountains Stevenson, Philip E.
The formation of cloud caps on high mountains illustrates cooling in an adiabatic expansion and the change in vapor pressure of a liquid with temperature.
Stevenson, Philip E. J. Chem. Educ. 1970, 47, 272.
Atmospheric Chemistry |
Gases |
Applications of Chemistry |
Phases / Phase Transitions / Diagrams |
Thermodynamics
|
Environmental chemistry in the classroom Day, Jean W.
The environmental sciences is an especially good vehicle for relating chemistry to other disciplines in courses for nonscientists.
Day, Jean W. J. Chem. Educ. 1970, 47, 260.
Nonmajor Courses |
Atmospheric Chemistry |
Applications of Chemistry
|
Chemical principles exemplified Plumb, Robert C.
Introduction to a new series, containing "exempla" (brief anecdotes about materials and phenomena which exemplify chemical principles). [Debut]
Plumb, Robert C. J. Chem. Educ. 1970, 47, 175.
Gases |
Kinetic-Molecular Theory |
Phases / Phase Transitions / Diagrams |
Thermodynamics |
Equilibrium |
Photochemistry |
Applications of Chemistry
|
Stable isotopes of the atmosphere Eck, C. F.
This article briefly presents the composition of air, the discovery of isotopes, their concentration in air, and reviews their current enrichment status.
Eck, C. F. J. Chem. Educ. 1969, 46, 706.
Atmospheric Chemistry |
Isotopes |
Nuclear / Radiochemistry
|
Construction and uses of an inexpensive polarimeter Vennos, Mary S.
Presents a design of an inexpensive polarimeter and its use to determine the specific rotation of sucrose and the concentration of an unknown sucrose solution.
Vennos, Mary S. J. Chem. Educ. 1969, 46, 459.
Laboratory Equipment / Apparatus |
Photochemistry |
Chirality / Optical Activity |
Enantiomers |
Instrumental Methods |
Noncovalent Interactions
|
Group zero. The atmosphere. B. Substances in the air Slabaugh, W. H.; Klug, Evangeline B.; Alyea, Hubert N.; Cooper, Edwin H.
Demonstrations include the analysis of air for oxygen content, paper burned in air, air + limewater, air + barium hydroxide, breathing into limewater, and the pH change from breath.
Slabaugh, W. H.; Klug, Evangeline B.; Alyea, Hubert N.; Cooper, Edwin H. J. Chem. Educ. 1967, 44, A599.
Atmospheric Chemistry |
Aqueous Solution Chemistry |
pH
|
Energy D. Light Energy Lamb, Clayton B; Averett, Gary; Hornbeck, Leroy G.; Alyea, Hubert N.; Slabaugh, W. H.
Demonstrations include the photochemical oxidation of thionin, the photochemical reduction of Fe(III) by oxalic acid, blueprinting, diazo-printing, polarizing crystals, growing hypo in polarizer, growing benzoic acid in polarizer, and different concentrations of karo syrup polarizer.
Lamb, Clayton B; Averett, Gary; Hornbeck, Leroy G.; Alyea, Hubert N.; Slabaugh, W. H. J. Chem. Educ. 1967, 44, A145.
Photochemistry
|
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 (the author replies) Holloway, John L.
Warns readers about the dangers associated with the preparation of xenon fluoride.
Holloway, John L. J. Chem. Educ. 1966, 43, 619.
Photochemistry
|
Letter to the editor Chernick, Cedrick L.
Warns readers about the dangers associated with the preparation of xenon fluoride.
Chernick, Cedrick L. J. Chem. Educ. 1966, 43, 619.
Photochemistry
|
Behavior of electrons in atoms: Structure, spectra, and photochemistry of atoms (Hochstrasser, Robin M.) Gregory, N. W.
Gregory, N. W. J. Chem. Educ. 1965, 42, 62.
Atomic Properties / Structure |
Photochemistry |
Spectroscopy |
Quantum Chemistry
|
Demonstration notes: Oxygen in air Glanz, Joseph
Explains that the popular method of demonstrating the percentage volume of oxygen in air is fraut with errors.
Glanz, Joseph J. Chem. Educ. 1963, 40, A477.
Gases |
Atmospheric Chemistry
|
Formation of monothiocyanatoiron(III): A photometric equilibrium study Ramette, Richard W.
Presents a beginning equilibrium experiment using photometry.
Ramette, Richard W. J. Chem. Educ. 1963, 40, 71.
Photochemistry |
Equilibrium |
Spectroscopy
|
Photosynthesis Bassham, J. A.
Provides a detailed review of what is known about photosynthesis and recent developments in methods of investigation.
Bassham, J. A. J. Chem. Educ. 1959, 36, 548.
Photosynthesis |
Plant Chemistry |
Photochemistry
|
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
|
Textbook errors: XV. Miscellanea Mysels, Karol J.
Textbooks errors considered include the solubility of acetates, the effect of light on reactions, tetrahedral carbon, the production of aluminum, and fumaric acid.
Mysels, Karol J. J. Chem. Educ. 1958, 35, 32.
Photochemistry |
Covalent Bonding
|
Radioisotopes on your rooftop Lockhart, Luther, B., Jr.
The collection, recovery, and measurement of radioactive materials from atomic testing can be done through the use of relatively simple procedures and is a good exercise in tracer chemistry.
Lockhart, Luther, B., Jr. J. Chem. Educ. 1957, 34, 602.
Nuclear / Radiochemistry |
Atmospheric Chemistry |
Isotopes
|
An efficient chemiluminescent system and a chemiluminescent clock reaction White, Emil H.
Presents the investigation of two chemiluminescent systems - the first is particularly brilliant and the second acts as a clock reaction.
White, Emil H. J. Chem. Educ. 1957, 34, 275.
Photochemistry |
Reactions
|
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
|
Letters to the editor Wolf, Milton G.
The author offers a means of determining the percentage composition of oxygen in air through burning phosphorus.
Wolf, Milton G. J. Chem. Educ. 1956, 33, 148.
Atmospheric Chemistry
|
Some new demonstrations on fluorescence Feigl, F.; Heisig, G. B.
Presents several demonstrations involving the fluorescent effects of 8-hydroxyquinoline (oxine), including the formation of fluorescent metal oxinates and the preparation of a fluorescent sol and aerosol.
Feigl, F.; Heisig, G. B. J. Chem. Educ. 1952, 29, 192.
Photochemistry
|
A demonstration on the chemistry of color Bunce, Stanley C.; Hammer, Henry F.
Describes a series of demonstrations to illustrate and explain the chemistry of color.
Bunce, Stanley C.; Hammer, Henry F. J. Chem. Educ. 1951, 28, 546.
Photochemistry |
Dyes / Pigments
|
|
