Chapter 18, Problem 51E

Interpretation Introduction

Interpretation:

The difference in the behavior of PbCl₂(s) in HCl and HNO₃with respect to the solubility in water should be explained.

Concept introduction:

The dissociation reaction of ${\text{PbCl}}_{\text{2}}$ is as follows:

${\text{PbCl}}_{\text{2}}\rightleftharpoons {\text{ Pb}}^{\text{2+}}{\text{+2Cl}}^{\text{-}}$

Here, PbCl₂ contains Pb (II) ions. Pb (II) ions form a complex ion with chloride ions in HCl as follows:

${\text{Pb}}^{2+}+3{\text{Cl}}^{-}\rightleftharpoons {[PbC{l}_3]}^{-}$