Chapter 19, Problem 19.63P

Interpretation Introduction

Interpretation:

The solubility of ions in ${\text{M}}_{\text{2}}\text{X}$ has to be calculated.  Set up for the ${\text{K}}_{\text{SP}}$ calculation has to be given.  In the dissociation of ${\text{M}}_{\text{2}}\text{X}$ the considered assumption has to be given and also the calculated ${\text{K}}_{\text{SP}}$ is higher than the actual value for this reason has to be given.

Concept Introduction:

Solubility product constant:

The equilibrium constant of a more soluble ionic compound in water at the higher solubility is known as solubility product constant.

The equilibrium constant of more soluble ionic compound is given by ${\text{K}}_{\text{SP}}$ and it is expressed by product of each ion present in the compound which are raised to the power of number respective ion present in the compound to give a maximum solubility of the compound.

$\begin{array}{l}{\text{M}}_{\text{m}}{\text{X}}_{\text{x}}{}_{\text{(s)}}\stackrel{}{\rightleftharpoons }{\text{ mM}}^{\text{n+}}{}_{\text{(aq)}}{\text{ + xX}}^{\text{y-}}{}_{\text{(aq)}}\\ \\ {\text{K}}_{\text{sp}}{\text{ = [M}}^{\text{n+}}{\text{]}}^{\text{m}}{{\text{[X}}^{\text{y-}}\text{]}}^{\text{x}}\end{array}$