Chapter 17, Problem 105QRT

Interpretation Introduction

Interpretation:

The ratio, $\frac{\text{conc}{\text{.Zn}}^{2+}}{\text{conc}{\text{.Cu}}^{2+}}$ for the given voltaic cell has to be calculated.

Concept Introduction:

The relation between cell potential and concentration of electrolytes in a given cell is given by Nernst equation, $E_{\text{cell}}=E_{\text{cell}}^{\text{ο}}-\frac{RT}{nF}\ln \frac{\left[\text{X}\right]}{\left[\text{Y}\right]}$.  The Nernst equation is useful in the calculation of cell potential provided the values of concentration of each electrolyte and the number of electrons exchanged in the reaction.  The unit of cell potential is volts.