The reason behind hydrogen abstraction by chlorine rather than bromine atoms even when equimolar amount of each is present should be explained. Concept introduction: The monochlorination performed with ultraviolet light proceeds via radical chain mechanism. Chlorine transforms CH 4 into chloromethane as the major halogenated product with variety of side products due to various possibility of chain termination. The chloromethane formed can undergo another cycle of radical mechanism to yield dichloromethane The fundamental radical chain mechanism is summarized in the illustration below:

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Answer 1

Question

Chapter 3.5, Problem 3.6E

(a)

Interpretation Introduction

Interpretation: The reason behind hydrogen abstraction by chlorine rather than bromine atoms even when equimolar amount of each is present should be explained.

Concept introduction: The monochlorination performed with ultraviolet light proceeds via radical chain mechanism. Chlorine transforms CH4 into chloromethane as the major halogenated product with variety of side products due to various possibility of chain termination. The chloromethane formed can undergo another cycle of radical mechanism to yield dichloromethane

The fundamental radical chain mechanism is summarized in the illustration below:

(b)

Interpretation Introduction

Interpretation: The bond enthalpies involved in radical halogenation carried out with tert-butylhypochlorite should be calculated.

Concept introduction: The monochlorination performed with ultraviolet light proceeds via radical chain mechanism. Chlorine transforms CH4 into chloromethane as the major halogenated product with variety of side products due to various possibility of chain termination.

The formula to calculate ΔH° from bond dissociation of reactants and products is as follows:

ΔH°=Sum of DH° of bonds broken−Sum of DH° of bonds formed

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Answer 2

Question

Chapter 3.5, Problem 3.6E

(a)

Interpretation Introduction

Interpretation: The reason behind hydrogen abstraction by chlorine rather than bromine atoms even when equimolar amount of each is present should be explained.

Concept introduction: The monochlorination performed with ultraviolet light proceeds via radical chain mechanism. Chlorine transforms CH4 into chloromethane as the major halogenated product with variety of side products due to various possibility of chain termination. The chloromethane formed can undergo another cycle of radical mechanism to yield dichloromethane

The fundamental radical chain mechanism is summarized in the illustration below:

(b)

Interpretation Introduction

Interpretation: The bond enthalpies involved in radical halogenation carried out with tert-butylhypochlorite should be calculated.

Concept introduction: The monochlorination performed with ultraviolet light proceeds via radical chain mechanism. Chlorine transforms CH4 into chloromethane as the major halogenated product with variety of side products due to various possibility of chain termination.

The formula to calculate ΔH° from bond dissociation of reactants and products is as follows:

ΔH°=Sum of DH° of bonds broken−Sum of DH° of bonds formed

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Answer 3

Question

Chapter 3.5, Problem 3.6E

(a)

Interpretation Introduction

Interpretation: The reason behind hydrogen abstraction by chlorine rather than bromine atoms even when equimolar amount of each is present should be explained.

Concept introduction: The monochlorination performed with ultraviolet light proceeds via radical chain mechanism. Chlorine transforms CH4 into chloromethane as the major halogenated product with variety of side products due to various possibility of chain termination. The chloromethane formed can undergo another cycle of radical mechanism to yield dichloromethane

The fundamental radical chain mechanism is summarized in the illustration below:

(b)

Interpretation Introduction

Interpretation: The bond enthalpies involved in radical halogenation carried out with tert-butylhypochlorite should be calculated.

Concept introduction: The monochlorination performed with ultraviolet light proceeds via radical chain mechanism. Chlorine transforms CH4 into chloromethane as the major halogenated product with variety of side products due to various possibility of chain termination.

The formula to calculate ΔH° from bond dissociation of reactants and products is as follows:

ΔH°=Sum of DH° of bonds broken−Sum of DH° of bonds formed

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Answer 4

Question

Chapter 3.5, Problem 3.6E

(a)

Interpretation Introduction

Interpretation: The reason behind hydrogen abstraction by chlorine rather than bromine atoms even when equimolar amount of each is present should be explained.

Concept introduction: The monochlorination performed with ultraviolet light proceeds via radical chain mechanism. Chlorine transforms CH4 into chloromethane as the major halogenated product with variety of side products due to various possibility of chain termination. The chloromethane formed can undergo another cycle of radical mechanism to yield dichloromethane

The fundamental radical chain mechanism is summarized in the illustration below:

(b)

Interpretation Introduction

Interpretation: The bond enthalpies involved in radical halogenation carried out with tert-butylhypochlorite should be calculated.

Concept introduction: The monochlorination performed with ultraviolet light proceeds via radical chain mechanism. Chlorine transforms CH4 into chloromethane as the major halogenated product with variety of side products due to various possibility of chain termination.

The formula to calculate ΔH° from bond dissociation of reactants and products is as follows:

ΔH°=Sum of DH° of bonds broken−Sum of DH° of bonds formed

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Answer 5

Chapter 3.5, Problem 3.6E

(a)

Interpretation Introduction

Interpretation: The reason behind hydrogen abstraction by chlorine rather than bromine atoms even when equimolar amount of each is present should be explained.

Concept introduction: The monochlorination performed with ultraviolet light proceeds via radical chain mechanism. Chlorine transforms CH4 into chloromethane as the major halogenated product with variety of side products due to various possibility of chain termination. The chloromethane formed can undergo another cycle of radical mechanism to yield dichloromethane

The fundamental radical chain mechanism is summarized in the illustration below:

(b)

Interpretation Introduction

Interpretation: The bond enthalpies involved in radical halogenation carried out with tert-butylhypochlorite should be calculated.

Concept introduction: The monochlorination performed with ultraviolet light proceeds via radical chain mechanism. Chlorine transforms CH4 into chloromethane as the major halogenated product with variety of side products due to various possibility of chain termination.

The formula to calculate ΔH° from bond dissociation of reactants and products is as follows:

ΔH°=Sum of DH° of bonds broken−Sum of DH° of bonds formed

Answer 6

Chapter 3.5, Problem 3.6E

(a)

Interpretation Introduction

Interpretation: The reason behind hydrogen abstraction by chlorine rather than bromine atoms even when equimolar amount of each is present should be explained.

Concept introduction: The monochlorination performed with ultraviolet light proceeds via radical chain mechanism. Chlorine transforms CH4 into chloromethane as the major halogenated product with variety of side products due to various possibility of chain termination. The chloromethane formed can undergo another cycle of radical mechanism to yield dichloromethane

The fundamental radical chain mechanism is summarized in the illustration below:

Answer 7

Chapter 3.5, Problem 3.6E

(a)

Interpretation Introduction

Interpretation: The reason behind hydrogen abstraction by chlorine rather than bromine atoms even when equimolar amount of each is present should be explained.

Concept introduction: The monochlorination performed with ultraviolet light proceeds via radical chain mechanism. Chlorine transforms CH4 into chloromethane as the major halogenated product with variety of side products due to various possibility of chain termination. The chloromethane formed can undergo another cycle of radical mechanism to yield dichloromethane

The fundamental radical chain mechanism is summarized in the illustration below:

Answer 8

(b)

Interpretation Introduction

Interpretation: The bond enthalpies involved in radical halogenation carried out with tert-butylhypochlorite should be calculated.

Concept introduction: The monochlorination performed with ultraviolet light proceeds via radical chain mechanism. Chlorine transforms CH4 into chloromethane as the major halogenated product with variety of side products due to various possibility of chain termination.

The formula to calculate ΔH° from bond dissociation of reactants and products is as follows:

ΔH°=Sum of DH° of bonds broken−Sum of DH° of bonds formed

Answer 9

(b)

Interpretation Introduction

Interpretation: The bond enthalpies involved in radical halogenation carried out with tert-butylhypochlorite should be calculated.

Concept introduction: The monochlorination performed with ultraviolet light proceeds via radical chain mechanism. Chlorine transforms CH4 into chloromethane as the major halogenated product with variety of side products due to various possibility of chain termination.

The formula to calculate ΔH° from bond dissociation of reactants and products is as follows:

ΔH°=Sum of DH° of bonds broken−Sum of DH° of bonds formed

Answer 10

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Answer 11

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Answer 12

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Answer 13

Ch. 3.1 - Prob. 3.2TIY Ch. 3.1 - Prob. 3.3E Ch. 3.4 - Prob. 3.5TIY Ch. 3.5 - Prob. 3.6E Ch. 3.7 - Prob. 3.7E Ch. 3.7 - Prob. 3.9TIY Ch. 3.9 - Prob. 3.11TIY Ch. 3.11 - Prob. 3.12E Ch. 3 - Prob. 15P Ch. 3 - Prob. 16P

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