Chapter 18, Problem 18.23QP

Use the standard reduction potentials to find the equilibrium constant for each of the following reactions at 25°C.

$\begin{array}{l}(\text{a}){\text{ Br}}_2(l)+2{\text{I}}^{-}(aq)\rightleftarrows 2{\text{Br}}^{-}(aq)+{\text{I}}_{\text{2}}(s)\\ (\text{b})2{\text{Ce}}^{\text{4+}}(aq)+2{\text{Cl}}^{-}(aq)\rightleftarrows \\ {\text{ Cl}}_2(g)+{\text{2Ce}}^{\text{3+}}(aq)\\ (\text{c})5{\text{Fe}}^{\text{2+}}(aq)+{\text{MnO}}_4{}^{-}(aq)+8{\text{H}}^{+}(aq)\rightleftarrows \\ {\text{ Mn}}^{2+}(aq)+4{\text{H}}_{\text{2}}\text{O}+{\text{5Fe}}^{\text{3+}}(aq)\end{array}$