Electrochemical Cell Potentials Can Be Used to Determine Equilibrium Constants $~~~~~~~~$

Electrochemical cell potentials can be used to determine equilibrium constants that would be otherwise difficult to determine because concentrations are small. Calculate the value of K_sp for AgI from the following data. $~~~~~~~~$$~~~~~~~~$ E ^$\circ$ = +0.80 V
$~~~~~~~~$ E ^$\circ$ = -0.15 V

A) 3.03 $\times$ 10^-14
B) 8.4 $\times$ 10^-17
C) 7.12 $\times$ 10^-12
D) 1.13 $\times$ 10¹⁶
E) 3.31 $\times$ 10¹³