Chapter 16, Problem 55QAP

Show by calculation, using Appendix 1, whether dissolving lead(II) chloride

${\text{PbCl}}_2\left(s\right)\rightleftharpoons {\text{Pb}}^{2+}\left(aq\right)+2{\text{Cl}}^{-}\left(aq\right)$ is spontaneous at 25°C

(a) when $\left[{\text{Pb}}^{2+}\right]=1.0M;\left[{\text{Cl}}^{-}\right]=2.0M$.

(b) when $\left[{\text{Pb}}^{2+}\right]=1.0\times {10}^{-5}M;\left[{\text{Cl}}^{-}\right]=2.0\times {10}^{-5}M$.