Chang - ChemQuest

1. The University of Alberta provides an electrochemistry tutorial. Read through the material posted at http://www.chem.ualberta.ca/courses/plambeck/p102/p02092.htm, and answer the following:

(a) In the four equations, are the species on the left of the equations being oxidized or reduced?
(b) According to the text, identify the electrode on the left of the diagram.
(c) According to the text, identify the electrode on the right of the diagram.
(d) What is taking place at the positive end of the cell? The negative?
(e) In which direction are the electrons moving?

2. Read the experiment on cell potentials at http://www.public.iastate.edu/~iachemed/FIPSE/RESOURCES/ELECTROCHEM/gcell.html, and then write the half reactions for each reaction that occurred in the three voltaic cells, along with the standard electrode potential for each half reaction.

3. Take a look at the experiment described at http://www.public.iastate.edu/~iachemed/FIPSE/RESOURCES/ELECTROCHEM/faraday-syn.html, and determine how long it would take, using a current of 0.50 A to deplete the copper sulfate.