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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?
NetorialsRebecca Ottosen, John Todd, Rachel Bain, Mike Miller, Liana Lamont, Mithra Biekmohamadi, and David B. Shaw Netorials is a collection of about 30 online tutorials on general chemistry topics designed as a supplement for high school or college introductory courses. Each Netorial contains several pages of interactive instruction that includes animated mouse-overs, questions for students to answer, and manipulable molecular structures. Ottosen, Rebecca; Todd, John; Bain, Rachel; Miller, Mike; Lamont. Liana; Biekmohamadi, Mithra; Shaw, David B. J. Chem. Educ.2008, 85, 463.
Acids / Bases |
Electrochemistry |
Reactions |
VSEPR Theory |
Stoichiometry
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.
Electrochemistry (Netorials)Rachel Bain, Mithra Biekmohamadi, Liana Lamont, Mike Miller, Rebecca Ottosen, John Todd, and David Shaw Electrochemistry: this is a resource in the collection "Netorials". This modules about electrochemistry includes topics such as oxidation-reduction and half reactions, voltaic and electrolytic cells, standard cell potentials and batteries. The Netorials cover selected topics in first-year chemistry including: Chemical Reactions, Stoichiometry, Thermodynamics, Intermolecular Forces, Acids & Bases, Biomolecules, and Electrochemistry.
Electrochemistry
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.
Zn2+(aq) + 2e- 
