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Electrochemical Cells Techniques involved in measuring the voltage of an electrochemical cell and some common errors in constructing electrochemical cells are demonstrated.
Electrolytic / Galvanic Cells / Potentials |
Laboratory Equipment / Apparatus
Oscillating Reaction: Briggs-Rauscher When a solution of malonic acid, starch, and manganese(II) ion is added to a solution of hydrogen peroxide, iodate ion, and sulfuric acid, gas bubbles form and the color of the resulting mixture oscillates periodically from colorless to amber to blue.
Consider the electrochemical cell diagram shown below. As you observe the reaction in the cell, you notice that the tin electrode seems to be disappearing while there are deposits forming on the silver electrode. Which of the following is a correct statement?
Textbook Error: Short Circuiting an Electrochemical CellJudith M. Bonicamp and Roy W. Clark Reports a serious error in the electrochemical diagrams in eight, 21st century texts and offers an analogy to electrical potential energy and a diagram to clarify the interrelationships between electromotive force E, reaction quotient Q, and Gibbs free energy G. Bonicamp, Judith M.; Clark, Roy W. J. Chem. Educ.2007, 84, 731.
Electrochemistry |
Electrolytic / Galvanic Cells / Potentials
Conceptual Considerations in Molecular ScienceDonald 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
Lithium Batteries: A Practical Application of Chemical PrinciplesRichard S. Treptow In recent years batteries have emerged in the marketplace that take advantage of the unique properties of lithium. Lithium metal is an attractive choice to serve as a battery anode because it is easily oxidized and it produces an exceptionally high amount of electrical charge per unit-weight. Treptow, Richard S. J. Chem. Educ.2003, 80, 1015.
Galvanic Cells and Free EnergyEd Vitz, John W. Moore A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Electrolytic / Galvanic Cells / Potentials
Galvanic CellsEd Vitz, John W. Moore A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Electrolytic / Galvanic Cells / Potentials
Electromotive Force of Galvanic CellsEd Vitz, John W. Moore A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.