Using the reduction potentials given calculate the

Question

Using the reduction potentials given, calculate the equilibrium constant,K, at 25 degrees Celsius for the reaction.

(Ag ^{+}(aq) + Fe^{2+} <---->Ag(s) +Fe^{3+}(aq))

(Fe^{3+}(aq)+e^{-} <------>Fe^{2+}(aq) , +0.77v)

(Ag ^{+}(aq) + e^{-} <-------> Ag(s) , +0.80 volts)