Chapter 12, Problem 12.41P

(a)

Interpretation Introduction

Interpretation:

Chemical reaction that can form ${\text{PbOH}}^{+}$ has to be written and an experiment has to be proposed to measure its different concentration with $\text{pH}$ meter.

Concept Introduction:

Mass balance equation represents net quantity of all such species in solution that have specific atoms must remain equal to total quantity of atoms added or delivered to the system initially.

For example, if $0.020\text{ mol}$ of acetic acid has been dissolved in $1\text{ L}$ solvent to form $0.020{\text{ M CH}}_3\text{COOH}$ solution, then after dissolution, amount of unionized and ionized acetic acid must remain equal to $0.020\text{ M}$.

  $0.020\text{ M}=\left[{\text{CH}}_3{\text{COO}}^{-}\right]+\left[{\text{CH}}_3\text{COOH}\right]$

For any systematic equilibrium, there might be more than one mass balance equations unlike charge balance equation. Such equations are governed by possible product species.

(b)

Interpretation Introduction

Interpretation:

A different method of determination for equilibrium constant of ${\text{PbI}}^{+}$ has to be proposed.

Concept Introduction:

Refer to part (a).