Chapter 20, Problem 78AE

Interpretation Introduction

Interpretation: The equilibrium constant of a reaction, $\text{pH}$ value of buffer solution, concentration of solution in ${\text{Pb}}^{2+}$ and concentration of solution in ${\text{H}}_{\text{2}}{\text{EDTA}}^{2-}$ is given. The concentration of ${\text{Pb}}^{2+}$ at equilibrium is to be calculated.

Concept introduction: At equilibrium, the equilibrium constant expression is expressed by the formula,

$K=\frac{\text{Concentration}\text{of}\text{products}}{\text{Concentration}\text{of}\text{reactants}}$

To determine: The concentration of ${\text{Pb}}^{2+}$ at equilibrium for the given reaction.