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Orange Juice Clock In this demonstration a galvanic cell is made from the combination of a magnesium strip, a copper strip, and juice in a beaker. The current from this cell is used to drive a clock normally powered by a DC battery.
Electrochemical Cells Techniques involved in measuring the voltage of an electrochemical cell and some common errors in constructing electrochemical cells are demonstrated.
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?
New Observations on the Copper-to-Silver-to-Gold DemonstrationDorin Bejan, Jeff Hastie, and Nigel J. Bunce This analysis of the classic copper-to-silver-to-gold demonstration describes the deposition of zinc in the form of the silver-colored alloy ?-brass, the evolution of hydrogen at the copper cathode, and the behavior of the associated electrochemical cell. Bejan, Dorin; Hastie, Jeff; Bunce, Nigel J. J. Chem. Educ.2008, 85, 1381.
Electrochemistry |
Electrolytic / Galvanic Cells / Potentials |
Oxidation State |
Oxidation / Reduction
Introducing Undergraduate Students to Electrochemistry: A Two-Week Discovery Chemistry ExperimentKenneth V. Mills, Richard S. Herrick, Louise W. Guilmette, Lisa P. Nestor, Heather Shafer, and Mauri A. Ditzler, Within the framework of a laboratory-focused, guided-inquiry pedagogy, students discover the Nernst equation, the spontaneity of galvanic cells, concentration cells, and the use of electrochemical data to calculate equilibrium constants. Mills, Kenneth V.; Herrick, Richard S.; Guilmette, Louise W.; Nestor, Lisa P.; Shafer, Heather;Ditzler, Mauri A. J. Chem. Educ.2008, 85, 1116.
Electrochemistry |
Electrolytic / Galvanic Cells / Potentials |
Equilibrium
Electrochemical Polishing of Silverware: A Demonstration of Voltaic and Galvanic CellsMichelle M. Ivey and Eugene T. Smith Using a battery and a graphite electrode, an electrolytic cell is constructed to generate a layer of tarnish on silverware. Students then determine that the tarnish can be removed by electrochemically converting it back to silver using aluminum foil and baking soda. Ivey, Michelle M.; Smith, Eugene T. J. Chem. Educ.2008, 85, 68.
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.
Electrolytic / Galvanic Cells / Potentials
Galvanic Cells and Free EnergyEd Vitz, John W. Moore A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Zn2+(aq) + 2e- 
