Chapter 1, Problem 28P

Interpretation Introduction

(a)

Interpretation:

Whether MES, MOPS or HEPS is effective at $\text{pH}$ 7.0 should be determined.

Concept introduction:

The effectiveness of a buffer can be determined by the fact that the $\text{pH}$ values and the $\text{p}{K}_{\text{a}}$ lies close to each other. If this value is not close the buffer will not be effective.

Interpretation Introduction

(b)

Interpretation:

Whether MES, MOPS or HEPS is effective at $\text{pH}$ 6.0 should be determined.

Concept introduction:

The effectiveness of a buffer can be determined by the fact that the $\text{pH}$ values and the $\text{p}{K}_{\text{a}}$ lies close to each other. If this value is not close the buffer will not be effective.