Chapter 17, Problem 66RQ

Interpretation Introduction

Interpretation:

For the solution containing $\text{0}\text{.015 mol}$ of ${\text{AgNO}}_3$ and $0.25\text{ mol}$ of $\text{Ca}{\left({\text{C}}_2{\text{H}}_3{\text{O}}_2\right)}_2$, the formation of precipitate is to be predicted.

Concept Introduction:

The formation of precipitate can be predicted from the concentrations of the ions of a salt in a solution and the value of $K_{\text{sp}}$ for the salt. For the precipitation of a salt, the solution must be supersaturated. The value of $Q$, the ion product, indicates the saturation or unsaturation of the solution.

If $Q>K_{\text{sp}}$, then the solution is supersaturated and precipitate will be formed.