Chapter 18, Problem 60E

A solution is 0.05 U m ${\text{Cu}}^{2+}$ in ${\text{Hg}}^{\text{2}+}$ , and in ${\text{Mn}}^{\text{2+}}$ . Which sulfides will precipitate if the solution is made to be 0.10M ${\text{H}}_{\text{2}}\text{S}\left(\text{aq}\right)$ ? For CuS, ${\text{K}}_{age}=6\times {10}^{-18}$ ; for HgS, ${\text{K}}_{age}=2\times {10}^{-22}$ ; for MnS, $K_{age}=3\times {10}^7$ .