Chapter 16, Problem 79QAP

Interpretation Introduction

(a)

Interpretation:

Whether it is possible to prepare a 0.030 M aqueous solution of ${\text{PbCl}}_{\text{2}}$ at $25{}^{\circ }\text{C}$ or not needs to be determined.

Concept introduction:

For a general solubility reaction of salt as follows:

$AB\left(s\right)\rightleftharpoons A^{+}\left(aq\right)+B^{-}\left(aq\right)$

The solubility product of the reaction can be calculated as follows:

$K_{sp}=\left(s\right)\left(s\right)=s^2$

Here, s is molar solubility of the AB salt.

Interpretation Introduction

(b)

Interpretation:

Whether it is possible if water is used at $100{}^{\circ }\text{C}$ or not needs to be determined.

Concept introduction:

For a general solubility reaction of salt as follows:

$AB\left(s\right)\rightleftharpoons A^{+}\left(aq\right)+B^{-}\left(aq\right)$

The solubility product of the reaction can be calculated as follows:

$K_{sp}=\left(s\right)\left(s\right)=s^2$

Here, s is molar solubility of the AB salt.