Chapter 13, Problem 108QAP

Interpretation Introduction

Interpretation:

The maximum pH of the solution needs to be determined.

Concept introduction:

The dissociation reaction of a weak base is represented as follows:

$\text{BOH}\rightleftarrows {\text{B}}^{+}+{\text{OH}}^{-}$

The expression for the base dissociation constant will be as follows:

$K_b=\frac{\left[{\text{B}}^{+}\right]\left[{\text{OH}}^{-}\right]}{\left[\text{BOH}\right]}$

Here, $\left[{\text{B}}^{+}\right]$ is equilibrium concentration of conjugate acid, $\left[{\text{OH}}^{-}\right]$ is equilibrium concentration of hydroxide ion and $\left[\text{BOH}\right]$ is the equilibrium concentration of weak base.