Chapter 18, Problem 59E

Interpretation Introduction

Interpretation:

Whether the Fe²+ and Mn²+ can be separated by precipitating FeS(s) and not MnS(s) should be explained.

Concept introduction:

${\text{K}}_{sp}=\frac{\left[{\text{Mn}}^{2+}\right]\left[{\text{H}}_2\text{S}\right]}{{\left[{\text{H}}_3{\text{O}}^{+}\right]}^2}$

${\text{K}}_{sp}=\frac{\left[{\text{Fe}}^{2+}\right]\left[{\text{H}}_2\text{S}\right]}{{\left[{\text{H}}_3{\text{O}}^{+}\right]}^2}$