Chapter 19, Problem 90GQ

A voltaic cell is constructed in which one half-cell consists of a silver wire in an aqueous solution of AgNO₃.The other half cell consists of an inert platinum wire in an aqueous solution containing Fe²⁺(aq) and Fe³⁺(aq).

1. (a) Calculate the cell potential, assuming standard conditions.
2. (b) Write the net ionic equation for the reaction occurring in the cell.
3. (c) Which electrode is the anode and which is the cathode?
4. (d) If [Ag⁺] is 0.10 M, and [Fe²⁺] and [Fe³⁺] are both 1.0 M, what is the cell potential? Is the net cell reaction still that used in part (a)? If not, what is the net reaction under the new conditions?