| Journal Articles: 46 results |
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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More on balancing redox equations Kolb, Doris
Balancing atypical redox equations.
Kolb, Doris J. Chem. Educ. 1979, 56, 181.
Stoichiometry |
Oxidation / Reduction
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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