Chapter 3, Problem 3.50AP

Interpretation Introduction

(a)

Interpretation:

The acid which is having more favorable standard free energy of dissociation is to be stated.

Concept introduction:

The free energy of dissociation of acid gives information about the acidic strength of the acid. Lesser is the free energy of dissociation, higher is the acidic strength of the acid and higher will be the dissociation of acid.

Interpretation Introduction

(b)

Interpretation:

The free energy used up to dissociate the $1M$ solution of phenylacetic acid completely into $1M$ of its conjugate base and $1M$ ${\text{H}}_{\text{3}}{\text{O}}^{\text{+}}$ is to be stated.

Concept introduction:

The free energy of dissociation of acid gives information about the acidic strength of the acid. Lesser is the free energy of dissociation, higher is the acidic strength of the acid and higher will be the dissociation of acid.

Interpretation Introduction

(c)

Interpretation:

The fraction of phenylacetic acid that is ionized in water if the $\text{pH}$ of water is adjusted at $4.5$ is to be stated.

Concept introduction:

The free energy of dissociation of acid gives information about the acidic strength of the acid. Lesser is the free energy of dissociation, higher is the acidic strength of the acid and higher will be the dissociation of acid.

Interpretation Introduction

(d)

Interpretation:

The acid that is more dissociated if the $\text{pH}$ of water is adjusted at $4.5$ is to be stated.

Concept introduction:

The free energy of dissociation of acid gives information about the acidic strength of the acid. Lesser is the free energy of dissociation, higher is the acidic strength of the acid and higher will be the dissociation of acid.

Interpretation Introduction

(e)

Interpretation:

As per the $\text{p}{K}_{\text{a}}$ value of phenylacetic acid, the nature of the polar effect of the phenyl group is to be stated.

Concept introduction:

The free energy of dissociation of acid gives information about the acidic strength of the acid. Lesser is the free energy of dissociation, higher is the acidic strength of the acid and higher will be the dissociation of acid.