Chapter 22, Problem 22.14QAP

From the standard potentials
   ${\text{Ag}}_{\text{2}}{\text{SeO}}_{\text{4}}\text{(}s\text{)}+2e^{-}\rightleftharpoons \text{2Ag}(s)+{\text{SeO}}_{\text{4}}{}^{\text{2-}}{E}^0=-0.355\text{V}$
   ${\text{Ag}}^{\text{+}}+2e^{-}\rightleftharpoons \text{Ag}(s)E^0=-0.799\text{V}$
calculate the solubility product constant for Ag₂SeO₄.