(a) Interpretation: Why the greater contribution, from the second of the two resonance structures shown, is counterintuitive based on charge stability is to be explained. Concept introduction: The relative stabilities of resonance structures can be determined on the basis of charge stability. The structure with positive charge on less electronegative atom and negative charge on more electronegative atom is more stable. The most stable resonance structure contributes more to the resonance hybrid.

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Answer 1

Question

Chapter 6, Problem 6.29P

Interpretation Introduction

(a)

Interpretation:

Why the greater contribution, from the second of the two resonance structures shown, is counterintuitive based on charge stability is to be explained.

Concept introduction:

The relative stabilities of resonance structures can be determined on the basis of charge stability. The structure with positive charge on less electronegative atom and negative charge on more electronegative atom is more stable. The most stable resonance structure contributes more to the resonance hybrid.

Interpretation Introduction

(b)

Interpretation:

The greater contribution from the second resonance structure is to be explained.

Concept introduction:

The most stable resonance structure contributes most to the hybrid.

Stability of a resonance structure depends on a number of factors. More the number of bonds, more the number of atoms that follow the octet or the duet rule and less the number of formal charge, the more stable the structure.

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с. d. СнЗ Сизена=-4=4 Cla H Eget3 над f. e. H-C=C-CH3 + 285 → H-C=C-CH3+2не H-C=C-CH3 + Nanta» g+ CH₂ CH₂-G = G-C₁₂-G=CH₂ + 2HI→ H H H AL

The IR (infrared) spectra of two pure compounds (0.010 M compound A in solvent and 0.010 M compound B in solvent) are given. The pathlength of the cell is 1.00 cm. The y-axis in the spectra is transmittance rather than absorption, so that the wavenumbers at which there is a dip in the curve correspond to absorption peaks. A mixture of A and B in unknown concentrations gave a percent transmittance of 49.8% at 2976 cm¹ and 44.9% at 3030 cm-1 Wavenumber 0.010 M A 0.010 M B Unknown 3030 cm-1 35.0% 93.0% 44.9% 2976 cm-¹ 76.0% 42.0% 49.8% What are the concentrations of A and B in the unknown sample? Transmittance (%) 100 90 80 70 60 50 40 2976 cm-1 30 3030 cm-1 20 Pure A 10 Pure B 0 3040 2990 Wavenumber (cm-1) 2940 2890

Answer 2

Question

Chapter 6, Problem 6.29P

Interpretation Introduction

(a)

Interpretation:

Why the greater contribution, from the second of the two resonance structures shown, is counterintuitive based on charge stability is to be explained.

Concept introduction:

The relative stabilities of resonance structures can be determined on the basis of charge stability. The structure with positive charge on less electronegative atom and negative charge on more electronegative atom is more stable. The most stable resonance structure contributes more to the resonance hybrid.

Interpretation Introduction

(b)

Interpretation:

The greater contribution from the second resonance structure is to be explained.

Concept introduction:

The most stable resonance structure contributes most to the hybrid.

Stability of a resonance structure depends on a number of factors. More the number of bonds, more the number of atoms that follow the octet or the duet rule and less the number of formal charge, the more stable the structure.

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Answer 3

Question

Chapter 6, Problem 6.29P

Interpretation Introduction

(a)

Interpretation:

Why the greater contribution, from the second of the two resonance structures shown, is counterintuitive based on charge stability is to be explained.

Concept introduction:

The relative stabilities of resonance structures can be determined on the basis of charge stability. The structure with positive charge on less electronegative atom and negative charge on more electronegative atom is more stable. The most stable resonance structure contributes more to the resonance hybrid.

Interpretation Introduction

(b)

Interpretation:

The greater contribution from the second resonance structure is to be explained.

Concept introduction:

The most stable resonance structure contributes most to the hybrid.

Stability of a resonance structure depends on a number of factors. More the number of bonds, more the number of atoms that follow the octet or the duet rule and less the number of formal charge, the more stable the structure.

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Answer 4

Question

Chapter 6, Problem 6.29P

Interpretation Introduction

(a)

Interpretation:

Why the greater contribution, from the second of the two resonance structures shown, is counterintuitive based on charge stability is to be explained.

Concept introduction:

The relative stabilities of resonance structures can be determined on the basis of charge stability. The structure with positive charge on less electronegative atom and negative charge on more electronegative atom is more stable. The most stable resonance structure contributes more to the resonance hybrid.

Interpretation Introduction

(b)

Interpretation:

The greater contribution from the second resonance structure is to be explained.

Concept introduction:

The most stable resonance structure contributes most to the hybrid.

Stability of a resonance structure depends on a number of factors. More the number of bonds, more the number of atoms that follow the octet or the duet rule and less the number of formal charge, the more stable the structure.

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Answer 5

Chapter 6, Problem 6.29P

Interpretation Introduction

(a)

Interpretation:

Why the greater contribution, from the second of the two resonance structures shown, is counterintuitive based on charge stability is to be explained.

Concept introduction:

The relative stabilities of resonance structures can be determined on the basis of charge stability. The structure with positive charge on less electronegative atom and negative charge on more electronegative atom is more stable. The most stable resonance structure contributes more to the resonance hybrid.

Interpretation Introduction

(b)

Interpretation:

The greater contribution from the second resonance structure is to be explained.

Concept introduction:

The most stable resonance structure contributes most to the hybrid.

Stability of a resonance structure depends on a number of factors. More the number of bonds, more the number of atoms that follow the octet or the duet rule and less the number of formal charge, the more stable the structure.

Answer 6

Chapter 6, Problem 6.29P

Interpretation Introduction

(a)

Interpretation:

Why the greater contribution, from the second of the two resonance structures shown, is counterintuitive based on charge stability is to be explained.

Concept introduction:

The relative stabilities of resonance structures can be determined on the basis of charge stability. The structure with positive charge on less electronegative atom and negative charge on more electronegative atom is more stable. The most stable resonance structure contributes more to the resonance hybrid.

Answer 7

Chapter 6, Problem 6.29P

Interpretation Introduction

(a)

Interpretation:

Why the greater contribution, from the second of the two resonance structures shown, is counterintuitive based on charge stability is to be explained.

Concept introduction:

The relative stabilities of resonance structures can be determined on the basis of charge stability. The structure with positive charge on less electronegative atom and negative charge on more electronegative atom is more stable. The most stable resonance structure contributes more to the resonance hybrid.

Answer 8

Interpretation Introduction

(b)

Interpretation:

The greater contribution from the second resonance structure is to be explained.

Concept introduction:

The most stable resonance structure contributes most to the hybrid.

Stability of a resonance structure depends on a number of factors. More the number of bonds, more the number of atoms that follow the octet or the duet rule and less the number of formal charge, the more stable the structure.

Answer 9

Interpretation Introduction

(b)

Interpretation:

The greater contribution from the second resonance structure is to be explained.

Concept introduction:

The most stable resonance structure contributes most to the hybrid.

Stability of a resonance structure depends on a number of factors. More the number of bonds, more the number of atoms that follow the octet or the duet rule and less the number of formal charge, the more stable the structure.

Answer 10

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Answer 11

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Answer 12

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Answer 13

Ch. 6 - Prob. 6.1P Ch. 6 - Prob. 6.2P Ch. 6 - Prob. 6.3P Ch. 6 - Prob. 6.4P Ch. 6 - Prob. 6.5P Ch. 6 - Prob. 6.6P Ch. 6 - Prob. 6.7P Ch. 6 - Prob. 6.8P Ch. 6 - Prob. 6.9P Ch. 6 - Prob. 6.10P

Solution Summary: The author explains why the greater contribution from the second resonance structure is counterintuitive based on charge stability.

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