Chapter 15, Problem 45E

Interpretation Introduction

Interpretation: The substance that shows increased solubility as the $\text{pH}$ of the solution becomes more acidic is to be identified from the exercise $\text{27}$ and $\text{28}$. The equations for the chemical reactions that occur to increase the solubility are to be stated.

Concept introduction: The solubility of salt is affected by $\text{pH}$. The decrease in the value of $\text{pH}$ has the opposite effect that is based on the application of Le Chatlier’s principle. The anions of strong acid and their salt is independent of $\text{pH}$ value whereas anions of weak acid is affected by $\text{pH}$ value. If the $\text{pH}$ value of basic salt is decreased, its solubility will increase.