Chapter 21, Problem 48PP

(a)

Interpretation Introduction

Interpretation:

To identify the compound that has the most acidic proton in given set of compounds.

Concept introduction:

pKa is negative base-10 logarithm of the dissociation constant of acid (Ka) of a solution. ${\text{pK}}_{\text{a}}{\text{= -log}}_{\text{10}}{\text{K}}_{\text{a}}$ pKa value of acid is inversely related to the strength of acid.  If pKa value is lower it means the acid is stronger and vice-versa.

pKa is used is to describe acid dissociation because it is expressed in small decimal numbers.

If pKa value is below 20 the compound is said to have acidic proton and vice versa

To identify : The compound pK_a value and the most acidic proton

(b)

Interpretation Introduction

Interpretation:

To identify the compound that has the most acidic proton in given set of compounds.

Concept introduction:

pKa is negative base-10 logarithm of the dissociation constant of acid (Ka) of a solution. ${\text{pK}}_{\text{a}}{\text{= -log}}_{\text{10}}{\text{K}}_{\text{a}}$ pKa value of acid is inversely related to the strength of acid.  If pKa value is lower it means the acid is stronger and vice-versa.

pKa is used is to describe acid dissociation because it is expressed in small decimal numbers.

If pKa value is below 20 the compound is said to have acidic proton and vice versa

To identify : The compound pK_a value and the most acidic proton

(c)

Interpretation Introduction

Interpretation:

To identify the compound that has the most acidic proton in given set of compounds.

Concept introduction:

pKa is negative base-10 logarithm of the dissociation constant of acid (Ka) of a solution. ${\text{pK}}_{\text{a}}{\text{= -log}}_{\text{10}}{\text{K}}_{\text{a}}$ pKa value of acid is inversely related to the strength of acid.  If pKa value is lower it means the acid is stronger and vice-versa.

pKa is used is to describe acid dissociation because it is expressed in small decimal numbers.

If pKa value is below 20 the compound is said to have acidic proton and vice versa

To identify : The compound pK_a value and the most acidic proton

(d)

Interpretation Introduction

Interpretation:

To identify the compound that has the most acidic proton in given set of compounds.

Concept introduction:

pKa is negative base-10 logarithm of the dissociation constant of acid (Ka) of a solution. ${\text{pK}}_{\text{a}}{\text{= -log}}_{\text{10}}{\text{K}}_{\text{a}}$ pKa value of acid is inversely related to the strength of acid.  If pKa value is lower it means the acid is stronger and vice-versa.

pKa is used is to describe acid dissociation because it is expressed in small decimal numbers.

If pKa value is below 20 the compound is said to have acidic proton and vice versa

To identify : The compound pK_a value and the most acidic proton

(e)

Interpretation Introduction

Interpretation:

To identify the compound that has the most acidic proton in given set of compounds.

Concept introduction:

pKa is negative base-10 logarithm of the dissociation constant of acid (Ka) of a solution. ${\text{pK}}_{\text{a}}{\text{= -log}}_{\text{10}}{\text{K}}_{\text{a}}$ pKa value of acid is inversely related to the strength of acid.  If pKa value is lower it means the acid is stronger and vice-versa.

pKa is used is to describe acid dissociation because it is expressed in small decimal numbers.

If pKa value is below 20 the compound is said to have acidic proton and vice versa

To identify : The compound pK_a value and the most acidic proton