Chapter 18, Problem 99SAE

Interpretation Introduction

Interpretation:

The correct method for complete precipitation of a metal ion as its sulfide from a saturated solution of hydrogen sulfide needs to be determined.

Concept introduction:

The pH of solution depends on hydronium ion concentration as follows:

$\text{pH}=-\log \left[{\text{H}}_{\text{3}}{\text{O}}^{+}\right]$

Here, $\left[{\text{H}}_{\text{3}}{\text{O}}^{+}\right]$ is hydronium ion concentration.