Chapter 19, Problem 19.20P

Interpretation Introduction

Interpretation:

Value of $\text{pH}$ has to be calculated.

Concept Introduction:

Before equivalence point Henderson-HasselBalch equation is employed to calculate $\text{pH}$ as follows:

  $\text{pH}=\text{p}{K}_{\text{HIn}}+\log \left(\frac{\left[{\text{In}}^{-}\right]}{\left[\text{HIn}\right]}\right)$

Here,

$\text{p}{K}_{\text{HIn}}$  is characteristic of indicator $\text{HIn}$.