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Journal Articles: 26 results
The Use of Conjugate Charts in Transfer Reactions: A Unified Approach  Michael I. Allnutt
Redox reactions are discussed in terms of the relative strengths of the oxidant, the reductant, and their conjugates; a conjugate chart is a convenient and useful way of doing this. A similar chart for acids and bases that can be applied in the same manner is proposed.
Allnutt, Michael I. J. Chem. Educ. 2007, 84, 1659.
Acids / Bases |
Electrolytic / Galvanic Cells / Potentials |
Oxidation / Reduction |
Brønsted-Lowry Acids / Bases
Effectiveness of Conceptual Change-Oriented Teaching Strategy To Improve Students' Understanding of Galvanic Cells  Ali Riza Özkaya, Musa Üce, Hakan Sariçayir, and Musa Sahin
This article presents efforts to develop a conceptual change-oriented strategy to teaching galvanic cells in electrochemistry. The objective is to assess the effectiveness of conceptual change-oriented instruction relative to conventional instruction using statistical comparisons.
Özkaya, Ali Riza; Üce, Musa; Sariçayir, Hakan; Sahin, Musa. J. Chem. Educ. 2006, 83, 1719.
Electrochemistry |
Equilibrium |
Oxidation / Reduction |
Undergraduate Research
Predicting Inorganic Reaction Products: A Critical Thinking Exercise in General Chemistry  David G. DeWit
Describes a course module designed to afford practice in applying the principles encountered throughout the general chemistry sequence to understanding and predicting chemical reactivity and the products of simple inorganic reactions.
DeWit, David G. J. Chem. Educ. 2006, 83, 1625.
Acids / Bases |
Descriptive Chemistry |
Learning Theories |
Metals |
Nonmetals |
Oxidation / Reduction |
Periodicity / Periodic Table |
Reactions
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
Isolation of Copper from a 5–Cent Coin. An Example of Electrorefining  Steven G. Sogo
The United States 5cent 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
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
Student Construction of a Gel-Filled Ag/AgCl Reference Electrode for Use in a Potentiometric Titration  James M. Thomas
Instructions for the preparation of a Ag/AgCl "reference"-type electrode that uses a gel-type matrix are given. In addition, construction steps are provided for a very sturdy Pt-nichrome "inert" electrode, which can be used many times. Together, these two electrodes, along with a multivoltmeter, have been used successfully to determine the percent of iron in Fe(NH4)2(SO4)2 and in Fe2O2 unknowns purchased commercially.
Thomas, James M. J. Chem. Educ. 1999, 76, 97.
Instrumental Methods |
Electrochemistry |
Quantitative Analysis |
Oxidation / Reduction |
Laboratory Equipment / Apparatus |
Titration / Volumetric Analysis
Redox Challenges (the author replies)  Stout, Roland
Algebraic solution to balancing a redox equation.
Stout, Roland J. Chem. Educ. 1996, 73, A227.
Stoichiometry |
Oxidation / Reduction |
Oxidation State
Redox Challenges (2)  Zaugg, Noel S.
Algebraic solution to balancing a redox equation.
Zaugg, Noel S. J. Chem. Educ. 1996, 73, A226.
Stoichiometry |
Oxidation / Reduction |
Oxidation State
Redox Challenges (1)  Hart, David M.
Algebraic solution to balancing a redox equation.
Hart, David M. J. Chem. Educ. 1996, 73, A226.
Stoichiometry |
Oxidation / Reduction |
Oxidation State
The computer as student: An application of artificial intelligence  Birk, James P.
The author describes how the development of computer software to teach about chemical reactivity also provides information about how we should teach several topics in general chemistry.
Birk, James P. J. Chem. Educ. 1992, 69, 294.
Oxidation / Reduction |
Acids / Bases
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
Redox demonstrations and descriptive chemistry: Part 2. Halogens  Ophardt, Charles E.
Oxidation states of bromine and iodine.
Ophardt, Charles E. J. Chem. Educ. 1987, 64, 807.
Oxidation / Reduction |
Descriptive Chemistry |
Oxidation State
Redox demonstrations and descriptive chemistry: Part 1. Metals  Ophardt, Charles E.
The oxidation states of iron, tin, and mercury.
Ophardt, Charles E. J. Chem. Educ. 1987, 64, 716.
Metals |
Descriptive Chemistry |
Oxidation / Reduction |
Oxidation State
Estimating the one electron reduction potential for vanadium (V) by chemical techniques: An experiment for general chemistry  Wentworth, R. A. D.
Procedure requires no electrochemical equipment because the method depends solely upon observations of the spontaneity of the reactions of V(V) with a series of potential reducing agents and V(IV) with a series of potential oxidizing agents.
Wentworth, R. A. D. J. Chem. Educ. 1985, 62, 440.
Oxidation State |
Oxidation / Reduction |
Electrochemistry
Reduction potentials and hydrogen overvoltage: An overhead projector demonstration  Ramette, Richard W.
Relates the scale of standard reduction potentials to the observed behavior of metals in their reactions with hydrogen ion to produce hydrogen gas.
Ramette, Richard W. J. Chem. Educ. 1982, 59, 866.
Electrochemistry |
Metals |
Oxidation / Reduction
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
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
White to rose and return: A multipurpose demonstration  Olson, Edwin S.
This demonstration is useful for illustrations of reversible redox reactions and for relative reduction potentials.
Olson, Edwin S. J. Chem. Educ. 1977, 54, 366.
Oxidation / Reduction |
Dyes / Pigments
Conjugate acid-base and redox theory  Pacer, Richard A.
Consideration of relative oxidizing / reducing strength would be greatly facilitated if this topic were presented in terms of transfer of one or more electrons between members of a conjugate redox pair.
Pacer, Richard A. J. Chem. Educ. 1973, 50, 178.
Acids / Bases |
Oxidation / Reduction
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
Oxidation of copper by hydrochloric acid  Walker, Noojin; George, Donald L.
Demonstrates the oxidation of copper by hydrochloric acid.
Walker, Noojin; George, Donald L. J. Chem. Educ. 1968, 45, A429.
Oxidation / Reduction |
Acids / Bases |
Electrochemistry
Spontaneous combustion  Geoghegan, John T.; Sheers, Edward H.
Linseed oil is observed to char cotton over a period of time.
Geoghegan, John T.; Sheers, Edward H. J. Chem. Educ. 1968, 45, A429.
Oxidation / Reduction |
Reactions |
Calorimetry / Thermochemistry
Biological oxidations and energy conservation  Kirschbaum, Joel
Examines the oxidative steps leading to the synthesis of ATP in living organisms and their metabolic control.
Kirschbaum, Joel J. Chem. Educ. 1968, 45, 28.
Bioenergetics |
Oxidation / Reduction |
Thermodynamics |
Metabolism
Metallic reduction of aqueous hydrogen chloride  Walker, Noojin, Jr.
Calcium reacts with HCl to liberate hydrogen gas.
Walker, Noojin, Jr. J. Chem. Educ. 1964, 41, A477.
Reactions |
Oxidation / Reduction |
Metals |
Electrochemistry
The chemistry of silver. A demonstration sequence  Schwenck, J. Rae
Presents a series of reactions in which silver is transformed from its elemental form into several different compounds and then returned to its elemental form.
Schwenck, J. Rae J. Chem. Educ. 1959, 36, 45.
Aqueous Solution Chemistry |
Oxidation / Reduction