Chapter 5, Problem 55E

Interpretation Introduction

Interpretation: If the emf of the cell increase, decrease or stay same on increasing the concentration of ${\text{Cu}}^{\text{2+}}$ ions by adding ${\text{CuSO}}_{\text{2}}.5{\text{H}}_{\text{2}}\text{O}$ to the cathode compartment is to be checked.

Concept introduction: The emf of the given cell related to reaction quotient by the formula,

$E_{\text{cell}}=E_{\text{cell}}^{\circ }-\frac{0.0592}{n}\log Q$

And reaction quotient is related to the concentration of ions by the formula,

$Q=\frac{\left[\text{Product}\right]}{\left[\text{Reactant}\right]}$

To determine: If the emf of the cell increase, decrease or stay same on increasing the concentration of ${\text{Cu}}^{\text{2+}}$ ions by adding ${\text{CuSO}}_{\text{2}}.5{\text{H}}_{\text{2}}\text{O}$ to the cathode compartment.