Chapter 12, Problem 12.97PAE

(a)

Interpretation Introduction

Interpretation:

The acid with larger Ka value should be detected and reason of larger value should be explained.

Concept Introduction:

The value of $K_a$, gives the dissociation constant for an acid. Hence, stronger the value of acid, more will be dissociation and so larger will be the value of $K_a$.

(b)

Interpretation Introduction

Interpretation:

pH should be estimated for each acid and difference between their values should be explained.

Concept Introduction:

Equivalence point is the point of titration curve where, the amount of titrant added is stoichiometrically enough to neutralize the amount of sample. It is detected at halfway of the steep curve.

The pH at this point will be the equivalent pH.

(c)

Interpretation Introduction

Interpretation:

If volume of acids A and B are taken equal then, acid with higher initial concentration should be determined.

Concept Introduction:

pH gives the concentration of $H^{+}$ ions, which can explain the concentration of the acid.$pH=-\log [H^{+}]$