Chapter 16, Problem 16.94QE

Interpretation Introduction

Interpretation:

The volume of concentrated $HCl$ that must be added to $500mLof0.10M$ ammonia to make a buffer at $pH9.25$ has to be calculated.

Concept Introduction:

The $pH$ of a buffer solution can be calculated by using Henderson – Hasselbalch equation.

  $pH=p{K}_a+\log \frac{n_b}{n_a}$

Where, $n_b$ is the number of moles of base and $n_a$ is the number of moles of acid.