Chapter 11, Problem 50E

Interpretation Introduction

Interpretation: The value of $K_{\text{sp}}$ for iron (II) sulfide from the given data needs to be determined.

Concept introduction: Cell potential is the difference in potential between its cathode and anode.

The overall cell potential can be calculated by using the equation,

. ${\text{E}}^{\text{0}}{}_{\text{Cell}}{\text{= E}}^{\text{0}}{}_{\text{reduced}}-{\text{ E}}^{\text{0}}{}_{\text{oxidised}}$

The $K_{\text{sp}}$ value for equilibrium can be calculated by the following relation,

  $\log K_{\text{sp}}=\frac{n{E}^0{}_{cell}}{0.0591}$

Here, nis number of electrons involved in overall reaction.