Chapter 9, Problem 9.68AP

Interpretation Introduction

(a)

Interpretation:

The solvent out of ethanol or diethyl ether which favors the equilibrium reaction between ${\left({\text{CH}}_{\text{3}}\right)}_2\text{S:}$ and ${\text{CH}}_{\text{3}}\text{Br}$ to lie farther to the right side position is to be stated.

Concept introduction:

The nucleophilic substitution reactions are the reactions in which a group is substituted by an incoming nucleophile. These rate of reaction depend upon the nucleophilicity and concentration of the incoming nucleophile.

The ${\text{S}}_{\text{N}}\text{2}$ reaction is a nucleophilic substitution bimolecular reaction in which the addition of incoming nucleophile and elimination of a leaving group takes place simultaneously. The rate of reaction depends upon both the substrate and reactant in the rate law equation.

Interpretation Introduction

(b)

Interpretation:

The solvent out of $N,N\text{-dimethylacetamide}$ or a mixture of water and methanol which favors the equilibrium reaction between ${\left({\text{CH}}_{\text{3}}\right)}_2\text{S:}$ and ${\text{CH}}_{\text{3}}\text{Br}$ to lie farther to right side position is to be stated.

Concept introduction:

The nucleophilic substitution reactions are the reactions in which a group is substituted by an incoming nucleophile. These rate of reaction depend upon the nucleophilicity and concentration of the incoming nucleophile.

The ${\text{S}}_{\text{N}}\text{2}$ reaction is a nucleophilic substitution bimolecular reaction in which the addition of incoming nucleophile and elimination of a leaving group takes place simultaneously. The rate of reaction depends upon both the substrate and reactant in the rate law equation.