Chemistry

Problem

Consider the cell

\text{Ag}|\text{AgBr}(s)|\text{Br}^- || \text{AgCl}(s)|\text{Cl}^-|\text{Ag}

at 25°C. The solubility product of AgCl and AgBr are

1 \times 10^{-10}

and

5 \times 10^{-13}

respectively. For what ratio of concentration of

\text{Br}^-

and

\text{Cl}^-

ions would the emf of cell be zero?