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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.
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.
A Lemon Cell Battery for High-Power ApplicationsKenneth R. Muske, Christopher W. Nigh, and Randy D. Weinstein This article discusses the development of a lemon cell battery for high-power applications such as radios, portable cassette or CD players, and battery-powered toys. Muske, Kenneth R.; Nigh, Christopher W.; Weinstein, Randy D. J. Chem. Educ.2007, 84, 635.
Storage BatteriesEd Vitz, John W. Moore A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Consumer Chemistry |
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.