Chapter 18, Problem 86E

An electrochemical cell consists of a silver metal electrode immersed in a solution with [Ag⁺] = 1.0 M separated by a porous disk from a copper metal electrode. If the copper electrode is placed in a solution of 5.0 M NH₃ that is also 0.010 M in Cu(NH₃)₄²⁺, what is the cell potential at 25°C?

${\text{Cu}}^{2+}(aq)+{\text{4NH}}_{\text{3}}(aq)\rightleftharpoons \text{Cu}{({\text{NH}}_{\text{3}}\text{)}}_{\text{4}}{}^{2+}(aq)K=1.0\times {10}^{13}$