Cell EMF under Nonstandard Conditions (Section)
A voltaic cell utilizes the following reaction:
Al(s) + 3 Ag+(aq2)→ Al3+(aq) + 3 Ag(s)
What is the effect on the cell emf of each of the following changes? (a) Water is added to the anode half-cell, diluting the solution. (b) The size of the aluminum electrode is increased. (c) A solution of AgNO3 is added to the cathode half-cell, increasing the quantity of Ag+ but not changing its concentration. (d) HCl is added to the AgNO3 solution, precipitating some of the Ag+ as AgCl.
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