Chapter 19, Problem 100AP

A galvanic cell is constructed as fellows. One half-cell consists of a platinum wire immersed in a solution containing $\text{1}\text{.0 }M{\text{ Sn}}^{\text{2-}}\text{ and 1}{\text{.0 Sn}}^{\text{4-}}\text{;}$ the other half-cell has a thallium rod immersed in a solution of $\text{1}\text{.0 }M{\text{ Tl}}^{\text{-}}\text{.}$ (a) Write the half-cell reactions and the overall reaction. (b) What is the equilibrium constant at $\text{25}°\text{C?}$ (c) What is the cell voltage if the ${\text{Tl}}^{\text{-}}$ concentration is increased 10-fold? $\text{(}E°{\text{ tl}}^{\text{-}}\text{/Tl = -o}\text{.34V}\text{.)}$