(a) Interpretation: The symmetry and the number of IR-active vibrations for H 2 O 2 molecule are to be stated. Concept introduction: The number of vibrations or degree of freedom of linear molecule is 3 N − 5 and the number of vibrations or degree of freedom of nonlinear molecule is 3 N − 6 . Only those vibrations which involve a change in dipole moment are said to be IR-active vibrations.

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Answer 1

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Chapter 14, Problem 14.78E

Interpretation Introduction

(a)

Interpretation:

The symmetry and the number of IR-active vibrations for H2O2 molecule are to be stated.

Concept introduction:

The number of vibrations or degree of freedom of linear molecule is 3N−5 and the number of vibrations or degree of freedom of nonlinear molecule is 3N−6. Only those vibrations which involve a change in dipole moment are said to be IR-active vibrations.

Interpretation Introduction

(b)

Interpretation:

The symmetry and the number of IR-active vibrations for (COOH)2 molecule is to be stated.

Concept introduction:

The number of vibrations or degree of freedom of linear molecule is 3N−5 and the number of vibrations or degree of freedom of nonlinear molecule is 3N−6. Only those vibrations which involve a change in dipole moment are said to be IR-active vibrations.

Interpretation Introduction

(c)

Interpretation:

The symmetry and the number of IR-active vibrations for SO3 molecule is to be stated.

Concept introduction:

The number of vibrations or degree of freedom of linear molecule is 3N−5 and the number of vibrations or degree of freedom of nonlinear molecule is 3N−6. Only those vibrations which involve a change in dipole moment are said to be IR-active vibrations.

Interpretation Introduction

(d)

Interpretation:

The symmetry and the number of IR-active vibrations for formaldehyde H2CO molecule is to be stated.

Concept introduction:

The number of vibrations or degree of freedom of linear molecule is 3N−5 and the number of vibrations or degree of freedom of nonlinear molecule is 3N−6. Only those vibrations which involve a change in dipole moment are said to be IR-active vibrations.

Interpretation Introduction

(e)

Interpretation:

The symmetry and the number of IR-active vibrations for (CH3)2CO molecule is to be stated.

Concept introduction:

The number of vibrations or degree of freedom of linear molecule is 3N−5 and the number of vibrations or degree of freedom of nonlinear molecule is 3N−6. Only those vibrations which involve a change in dipole moment are said to be IR-active vibrations.

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Answer 2

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Chapter 14, Problem 14.78E

Interpretation Introduction

(a)

Interpretation:

The symmetry and the number of IR-active vibrations for H2O2 molecule are to be stated.

Concept introduction:

The number of vibrations or degree of freedom of linear molecule is 3N−5 and the number of vibrations or degree of freedom of nonlinear molecule is 3N−6. Only those vibrations which involve a change in dipole moment are said to be IR-active vibrations.

Interpretation Introduction

(b)

Interpretation:

The symmetry and the number of IR-active vibrations for (COOH)2 molecule is to be stated.

Concept introduction:

The number of vibrations or degree of freedom of linear molecule is 3N−5 and the number of vibrations or degree of freedom of nonlinear molecule is 3N−6. Only those vibrations which involve a change in dipole moment are said to be IR-active vibrations.

Interpretation Introduction

(c)

Interpretation:

The symmetry and the number of IR-active vibrations for SO3 molecule is to be stated.

Concept introduction:

The number of vibrations or degree of freedom of linear molecule is 3N−5 and the number of vibrations or degree of freedom of nonlinear molecule is 3N−6. Only those vibrations which involve a change in dipole moment are said to be IR-active vibrations.

Interpretation Introduction

(d)

Interpretation:

The symmetry and the number of IR-active vibrations for formaldehyde H2CO molecule is to be stated.

Concept introduction:

The number of vibrations or degree of freedom of linear molecule is 3N−5 and the number of vibrations or degree of freedom of nonlinear molecule is 3N−6. Only those vibrations which involve a change in dipole moment are said to be IR-active vibrations.

Interpretation Introduction

(e)

Interpretation:

The symmetry and the number of IR-active vibrations for (CH3)2CO molecule is to be stated.

Concept introduction:

The number of vibrations or degree of freedom of linear molecule is 3N−5 and the number of vibrations or degree of freedom of nonlinear molecule is 3N−6. Only those vibrations which involve a change in dipole moment are said to be IR-active vibrations.

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Answer 3

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Chapter 14, Problem 14.78E

Interpretation Introduction

(a)

Interpretation:

The symmetry and the number of IR-active vibrations for H2O2 molecule are to be stated.

Concept introduction:

The number of vibrations or degree of freedom of linear molecule is 3N−5 and the number of vibrations or degree of freedom of nonlinear molecule is 3N−6. Only those vibrations which involve a change in dipole moment are said to be IR-active vibrations.

Interpretation Introduction

(b)

Interpretation:

The symmetry and the number of IR-active vibrations for (COOH)2 molecule is to be stated.

Concept introduction:

The number of vibrations or degree of freedom of linear molecule is 3N−5 and the number of vibrations or degree of freedom of nonlinear molecule is 3N−6. Only those vibrations which involve a change in dipole moment are said to be IR-active vibrations.

Interpretation Introduction

(c)

Interpretation:

The symmetry and the number of IR-active vibrations for SO3 molecule is to be stated.

Concept introduction:

The number of vibrations or degree of freedom of linear molecule is 3N−5 and the number of vibrations or degree of freedom of nonlinear molecule is 3N−6. Only those vibrations which involve a change in dipole moment are said to be IR-active vibrations.

Interpretation Introduction

(d)

Interpretation:

The symmetry and the number of IR-active vibrations for formaldehyde H2CO molecule is to be stated.

Concept introduction:

The number of vibrations or degree of freedom of linear molecule is 3N−5 and the number of vibrations or degree of freedom of nonlinear molecule is 3N−6. Only those vibrations which involve a change in dipole moment are said to be IR-active vibrations.

Interpretation Introduction

(e)

Interpretation:

The symmetry and the number of IR-active vibrations for (CH3)2CO molecule is to be stated.

Concept introduction:

The number of vibrations or degree of freedom of linear molecule is 3N−5 and the number of vibrations or degree of freedom of nonlinear molecule is 3N−6. Only those vibrations which involve a change in dipole moment are said to be IR-active vibrations.

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Answer 4

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100%

Chapter 14, Problem 14.78E

Interpretation Introduction

(a)

Interpretation:

The symmetry and the number of IR-active vibrations for H2O2 molecule are to be stated.

Concept introduction:

The number of vibrations or degree of freedom of linear molecule is 3N−5 and the number of vibrations or degree of freedom of nonlinear molecule is 3N−6. Only those vibrations which involve a change in dipole moment are said to be IR-active vibrations.

Interpretation Introduction

(b)

Interpretation:

The symmetry and the number of IR-active vibrations for (COOH)2 molecule is to be stated.

Concept introduction:

The number of vibrations or degree of freedom of linear molecule is 3N−5 and the number of vibrations or degree of freedom of nonlinear molecule is 3N−6. Only those vibrations which involve a change in dipole moment are said to be IR-active vibrations.

Interpretation Introduction

(c)

Interpretation:

The symmetry and the number of IR-active vibrations for SO3 molecule is to be stated.

Concept introduction:

The number of vibrations or degree of freedom of linear molecule is 3N−5 and the number of vibrations or degree of freedom of nonlinear molecule is 3N−6. Only those vibrations which involve a change in dipole moment are said to be IR-active vibrations.

Interpretation Introduction

(d)

Interpretation:

The symmetry and the number of IR-active vibrations for formaldehyde H2CO molecule is to be stated.

Concept introduction:

The number of vibrations or degree of freedom of linear molecule is 3N−5 and the number of vibrations or degree of freedom of nonlinear molecule is 3N−6. Only those vibrations which involve a change in dipole moment are said to be IR-active vibrations.

Interpretation Introduction

(e)

Interpretation:

The symmetry and the number of IR-active vibrations for (CH3)2CO molecule is to be stated.

Concept introduction:

The number of vibrations or degree of freedom of linear molecule is 3N−5 and the number of vibrations or degree of freedom of nonlinear molecule is 3N−6. Only those vibrations which involve a change in dipole moment are said to be IR-active vibrations.

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Answer 5

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Answer 6

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Answer 7

Chapter 14, Problem 14.78E

Interpretation Introduction

(a)

Interpretation:

The symmetry and the number of IR-active vibrations for H2O2 molecule are to be stated.

Concept introduction:

The number of vibrations or degree of freedom of linear molecule is 3N−5 and the number of vibrations or degree of freedom of nonlinear molecule is 3N−6. Only those vibrations which involve a change in dipole moment are said to be IR-active vibrations.

Interpretation Introduction

(b)

Interpretation:

The symmetry and the number of IR-active vibrations for (COOH)2 molecule is to be stated.

Concept introduction:

The number of vibrations or degree of freedom of linear molecule is 3N−5 and the number of vibrations or degree of freedom of nonlinear molecule is 3N−6. Only those vibrations which involve a change in dipole moment are said to be IR-active vibrations.

Interpretation Introduction

(c)

Interpretation:

The symmetry and the number of IR-active vibrations for SO3 molecule is to be stated.

Concept introduction:

The number of vibrations or degree of freedom of linear molecule is 3N−5 and the number of vibrations or degree of freedom of nonlinear molecule is 3N−6. Only those vibrations which involve a change in dipole moment are said to be IR-active vibrations.

Interpretation Introduction

(d)

Interpretation:

The symmetry and the number of IR-active vibrations for formaldehyde H2CO molecule is to be stated.

Concept introduction:

The number of vibrations or degree of freedom of linear molecule is 3N−5 and the number of vibrations or degree of freedom of nonlinear molecule is 3N−6. Only those vibrations which involve a change in dipole moment are said to be IR-active vibrations.

Interpretation Introduction

(e)

Interpretation:

The symmetry and the number of IR-active vibrations for (CH3)2CO molecule is to be stated.

Concept introduction:

The number of vibrations or degree of freedom of linear molecule is 3N−5 and the number of vibrations or degree of freedom of nonlinear molecule is 3N−6. Only those vibrations which involve a change in dipole moment are said to be IR-active vibrations.

Answer 8

Chapter 14, Problem 14.78E

Interpretation Introduction

(a)

Interpretation:

The symmetry and the number of IR-active vibrations for H2O2 molecule are to be stated.

Concept introduction:

The number of vibrations or degree of freedom of linear molecule is 3N−5 and the number of vibrations or degree of freedom of nonlinear molecule is 3N−6. Only those vibrations which involve a change in dipole moment are said to be IR-active vibrations.

Answer 9

Chapter 14, Problem 14.78E

Interpretation Introduction

(a)

Interpretation:

The symmetry and the number of IR-active vibrations for H2O2 molecule are to be stated.

Concept introduction:

The number of vibrations or degree of freedom of linear molecule is 3N−5 and the number of vibrations or degree of freedom of nonlinear molecule is 3N−6. Only those vibrations which involve a change in dipole moment are said to be IR-active vibrations.

Answer 10

Interpretation Introduction

(b)

Interpretation:

The symmetry and the number of IR-active vibrations for (COOH)2 molecule is to be stated.

Concept introduction:

The number of vibrations or degree of freedom of linear molecule is 3N−5 and the number of vibrations or degree of freedom of nonlinear molecule is 3N−6. Only those vibrations which involve a change in dipole moment are said to be IR-active vibrations.

Answer 11

Interpretation Introduction

(b)

Interpretation:

The symmetry and the number of IR-active vibrations for (COOH)2 molecule is to be stated.

Concept introduction:

The number of vibrations or degree of freedom of linear molecule is 3N−5 and the number of vibrations or degree of freedom of nonlinear molecule is 3N−6. Only those vibrations which involve a change in dipole moment are said to be IR-active vibrations.

Answer 12

Interpretation Introduction

(c)

Interpretation:

The symmetry and the number of IR-active vibrations for SO3 molecule is to be stated.

Concept introduction:

The number of vibrations or degree of freedom of linear molecule is 3N−5 and the number of vibrations or degree of freedom of nonlinear molecule is 3N−6. Only those vibrations which involve a change in dipole moment are said to be IR-active vibrations.

Answer 13

Interpretation Introduction

(c)

Interpretation:

The symmetry and the number of IR-active vibrations for SO3 molecule is to be stated.

Concept introduction:

The number of vibrations or degree of freedom of linear molecule is 3N−5 and the number of vibrations or degree of freedom of nonlinear molecule is 3N−6. Only those vibrations which involve a change in dipole moment are said to be IR-active vibrations.

Answer 14

Interpretation Introduction

(d)

Interpretation:

The symmetry and the number of IR-active vibrations for formaldehyde H2CO molecule is to be stated.

Concept introduction:

The number of vibrations or degree of freedom of linear molecule is 3N−5 and the number of vibrations or degree of freedom of nonlinear molecule is 3N−6. Only those vibrations which involve a change in dipole moment are said to be IR-active vibrations.

Answer 15

Interpretation Introduction

(d)

Interpretation:

The symmetry and the number of IR-active vibrations for formaldehyde H2CO molecule is to be stated.

Concept introduction:

The number of vibrations or degree of freedom of linear molecule is 3N−5 and the number of vibrations or degree of freedom of nonlinear molecule is 3N−6. Only those vibrations which involve a change in dipole moment are said to be IR-active vibrations.

Answer 16

Interpretation Introduction

(e)

Interpretation:

The symmetry and the number of IR-active vibrations for (CH3)2CO molecule is to be stated.

Concept introduction:

The number of vibrations or degree of freedom of linear molecule is 3N−5 and the number of vibrations or degree of freedom of nonlinear molecule is 3N−6. Only those vibrations which involve a change in dipole moment are said to be IR-active vibrations.

Answer 17

Interpretation Introduction

(e)

Interpretation:

The symmetry and the number of IR-active vibrations for (CH3)2CO molecule is to be stated.

Concept introduction:

The number of vibrations or degree of freedom of linear molecule is 3N−5 and the number of vibrations or degree of freedom of nonlinear molecule is 3N−6. Only those vibrations which involve a change in dipole moment are said to be IR-active vibrations.

Answer 18

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Answer 19

Expert Solution & Answer

Answer 20

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Answer 21

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Solution Summary: The author explains the symmetry and the number of IR-active vibrations for Hydrogen Peroxide left, which is a nonlinear molecule.

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Chapter 14 Solutions