The reason for higher boiling point of primary amine needs to be explained when both primary and tertiary amines (with same carbon atoms) are soluble in water. Concept Introduction: Nitrogen has a higher electronegativity. Therefore, N can form more polar bonds with other less electronegative atoms. For example, C-N and N-H bonds are polar. Molecules that have N-H bonds are capable of forming intermolecular hydrogen bonds. Higher the intermolecular interactions, higher its boiling point.

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Answer 1

Question

Chapter 18, Problem 18.55P

Interpretation Introduction

Interpretation:

The reason for higher boiling point of primary amine needs to be explained when both primary and tertiary amines (with same carbon atoms) are soluble in water.

Concept Introduction:

Nitrogen has a higher electronegativity. Therefore, N can form more polar bonds with other less electronegative atoms. For example, C-N and N-H bonds are polar. Molecules that have N-H bonds are capable of forming intermolecular hydrogen bonds. Higher the intermolecular interactions, higher its boiling point.

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Draw several molecules of methanamide and show the intermolecular hydrogen bonding that account for the amide’s very high boiling point.

Answer 2

Question

Chapter 18, Problem 18.55P

Interpretation Introduction

Interpretation:

The reason for higher boiling point of primary amine needs to be explained when both primary and tertiary amines (with same carbon atoms) are soluble in water.

Concept Introduction:

Nitrogen has a higher electronegativity. Therefore, N can form more polar bonds with other less electronegative atoms. For example, C-N and N-H bonds are polar. Molecules that have N-H bonds are capable of forming intermolecular hydrogen bonds. Higher the intermolecular interactions, higher its boiling point.

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Answer 3

Question

Chapter 18, Problem 18.55P

Interpretation Introduction

Interpretation:

The reason for higher boiling point of primary amine needs to be explained when both primary and tertiary amines (with same carbon atoms) are soluble in water.

Concept Introduction:

Nitrogen has a higher electronegativity. Therefore, N can form more polar bonds with other less electronegative atoms. For example, C-N and N-H bonds are polar. Molecules that have N-H bonds are capable of forming intermolecular hydrogen bonds. Higher the intermolecular interactions, higher its boiling point.

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Answer 4

Question

Chapter 18, Problem 18.55P

Interpretation Introduction

Interpretation:

The reason for higher boiling point of primary amine needs to be explained when both primary and tertiary amines (with same carbon atoms) are soluble in water.

Concept Introduction:

Nitrogen has a higher electronegativity. Therefore, N can form more polar bonds with other less electronegative atoms. For example, C-N and N-H bonds are polar. Molecules that have N-H bonds are capable of forming intermolecular hydrogen bonds. Higher the intermolecular interactions, higher its boiling point.

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Answer 5

Chapter 18, Problem 18.55P

Interpretation Introduction

Interpretation:

The reason for higher boiling point of primary amine needs to be explained when both primary and tertiary amines (with same carbon atoms) are soluble in water.

Concept Introduction:

Nitrogen has a higher electronegativity. Therefore, N can form more polar bonds with other less electronegative atoms. For example, C-N and N-H bonds are polar. Molecules that have N-H bonds are capable of forming intermolecular hydrogen bonds. Higher the intermolecular interactions, higher its boiling point.

Answer 6

Chapter 18, Problem 18.55P

Interpretation Introduction

Interpretation:

The reason for higher boiling point of primary amine needs to be explained when both primary and tertiary amines (with same carbon atoms) are soluble in water.

Concept Introduction:

Nitrogen has a higher electronegativity. Therefore, N can form more polar bonds with other less electronegative atoms. For example, C-N and N-H bonds are polar. Molecules that have N-H bonds are capable of forming intermolecular hydrogen bonds. Higher the intermolecular interactions, higher its boiling point.

Answer 7

Chapter 18, Problem 18.55P

Interpretation Introduction

Interpretation:

The reason for higher boiling point of primary amine needs to be explained when both primary and tertiary amines (with same carbon atoms) are soluble in water.

Concept Introduction:

Nitrogen has a higher electronegativity. Therefore, N can form more polar bonds with other less electronegative atoms. For example, C-N and N-H bonds are polar. Molecules that have N-H bonds are capable of forming intermolecular hydrogen bonds. Higher the intermolecular interactions, higher its boiling point.

Answer 8

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Answer 9

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Answer 11

Ch. 18.1 - Prob. 18.1P Ch. 18.1 - Prob. 18.2P Ch. 18.1 - Prob. 18.3P Ch. 18.1 - Prob. 18.4P Ch. 18.2 - Prob. 18.5P Ch. 18.2 - Prob. 18.6P Ch. 18.2 - Prob. 18.7P Ch. 18.3 - Prob. 18.8P Ch. 18.4 - Decaffeinated coffee is produced by extracting the...Ch. 18.4 - Prob. 18.10P

Solution Summary: The author explains why primary and tertiary amines are soluble in water. Nitrogen has a higher electronegativity and can form intermolecular hydrogen bonds.

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Chapter 18 Solutions