Chapter 6, Problem 6C.22E

(a)

Interpretation Introduction

Interpretation:

An explanation for the different strengths of ammonia and methylamine has to be suggested.

Concept Introduction:

The strength of proton accepting of an base is called basicity constant and also the basicity constant is said to be as their negative logarithms and which can be represented as follows,

    ${\text{pK}}_{\text{b}}\text{=}{\text{-logK}}_{\text{b}}$

When looking for the strength of acids and bases the following points should be noted,

• Weak base always have the smaller value of ${\text{K}}_{\text{b}}$ and has greater value of ${\text{pK}}_{\text{b}}\text{.}$

(b)

Interpretation Introduction

Interpretation:

An explanation for the different strengths of hydrazine and hydroxylamine has to be suggested.

Concept Introduction:

Refer to part (a).