Chapter 13, Problem 182CP

Interpretation Introduction

Interpretation: The $\text{pH}$ of the given solution of $0.10\text{M}$ sodium phosphate is to be calculated.

Concept introduction: The $\text{pOH}$ is calculated by the formula,

$\text{pOH}=-\text{log}\left[{\text{OH}}^{-}\right]$

The sum,

$\text{pH}+\text{pOH}=14$

The water ionization product is calculated by the formula,

$K_{\text{a}}\times K_{\text{b}}=K_{\text{w}}$

To determine: The $\text{pH}$ of the given solution of $0.10\text{M}$ sodium phosphate.