Chapter 15, Problem 15.11P

Interpretation Introduction

Interpretation:

Reasonsfor the possibility of inaccurate ${\text{H}}^{+}$ ion measurement with a $\text{pH}$ electrode while accurate $\text{pH}$ measurement in an acid-base titration has to be given.

Concept Introduction:

In order to make effective use of the glass electrode, it must be calibrated before the measurement of $\text{pH}$. For this purpose, the glass electrode is dipped in a standard buffer that has $\text{pH}$ of 7. Further, after its usage glass electrode must be stored in an aqueous medium of reference electrode to prevent any dehydration.