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Electrochemical Series: Metal Trees A piece of metal (Cu, Zn, Ag, Cd, or Pb) is placed in an aqueous solution of a metal ion (Cu2+, Zn2+, Ag+, Cd2+, or Pb2+). In some cases the growth of metal crystals indicates that a chemical reaction has occurred.
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?
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.
Consumer Chemistry |
Electrochemistry |
Electrolytic / Galvanic Cells / Potentials
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.
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- 
