Chapter 10.2, Problem 2TY

Interpretation Introduction

Interpretation:

The $\text{pH}$ of given ${\text{Na}}_{\text{2}}\text{P}$ solution has to be calculated.

Concept introduction:

Henderson-Hassel Balch equation

$\begin{array}{l}{\text{pH=pK}}_{\text{1}}\text{+log}\frac{\left[{\text{HA}}^{\text{-}}\right]}{\left[{\text{H}}_{\text{2}}\text{A}\right]}\\ {\text{pH=pK}}_{\text{2}}\text{+log}\frac{\left[{\text{A}}^{\text{2-}}\right]}{\left[{\text{HA}}^{\text{-}}\right]}\end{array}$

The $\text{pH}$ can be calculated using above equation