Chapter 8.8, Problem 8.29P

(a)

Interpretation Introduction

Interpretation:

The solution of $\text{HBr}$ and $\text{NaBr}$ has to be determined as a buffer and the reason has to be explained.

Concept Introduction:

Buffer:  A buffer consists of equal amounts of a weak acid and the salt of its conjugate base.

The weak acid of the buffer reacts with added base, ${\text{OH}}^{\text{-}}\text{.}$

The conjugate base of the buffer reacts with added acid, ${\text{H}}_{\text{3}}{\text{O}}^{\text{+}}\text{.}$

(b)

Interpretation Introduction

Interpretation:

The solution of $\text{HF}$ and $\text{KF}$ has to be determined as a buffer and the reason has to be explained.

Concept Introduction:

Refer to part (a).

(c)

Interpretation Introduction

Interpretation:

The solution of ${\text{CH}}_{\text{3}}\text{COOH}$ has to be determined as a buffer and the reason has to be explained.

Concept Introduction:

Refer to part (a).