Chapter 8, Problem 8.1P

Interpretation Introduction

Interpretation:

The solubility of an ionic compound increases as the ionic strength of the solution increases this has to be explained.

Concept introduction:

Ionic strength $\left(\mu \right)$:

The ionic strength $\left(\text{μ}\right)$ of the solution is given by

$\begin{array}{l}\text{μ}\text{=}\frac{\text{1}}{\text{2}}\left({\text{c}}_{\text{1}}{\text{z}}_{\text{1}}^{\text{2}}\text{+}{\text{c}}_{\text{2}}{\text{z}}_{\text{2}}^{\text{2}}\text{+}\mathrm{.......}\right)\text{=}\frac{\text{1}}{\text{2}}{\displaystyle \sum _{\text{i}}{\text{c}}_{\text{i}}{\text{z}}_{\text{i}}{}^{\text{2}}}\\ \text{where,}\\ {\text{c}}_{\text{i}}\text{-}\text{concentration}\text{of}\text{the}{\text{i}}^{\text{th}}\text{species}\text{and}{\text{z}}_{\text{i}}\text{-}\text{is}\text{its}\text{charge}\text{.}\end{array}$