In Section 15.5c, we learned that the frequency of the C=O stretch for an amide is lower than it is for a ketone , suggesting that the C=O bond is weaker in an amide. This weakening of the C=O bond can be explained by the significant contribution from one of its resonance structures toward the resonance hybrid. The resonance structure for N, N-dimethylacetamide [CH 3 CON(CH 3 ) 2 ] is to be drawn and how it accounts for the weakening of the C=O bond is to be explained. Concept introduction: The lone pair on nitrogen atom can take part in resonance with C=O bond in amide. The C-O single bond is weaker than C=O bond. The C-O single bond character decreases the stiffness of C=O bond. The stretching frequency of C=O band lowers by the Weakening of C=O bond.

Question

Rank the labeled protons (Ha-Hd) in order of increasing acidity, starting with the least acidic. НОН НЬ OHd Онс

Answer 1

Question

Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter 15, Problem 15.43P

Interpretation Introduction

Interpretation:

In Section 15.5c, we learned that the frequency of the C=O stretch for an amide is lower than it is for a ketone, suggesting that the C=O bond is weaker in an amide. This weakening of the C=O bond can be explained by the significant contribution from one of its resonance structures toward the resonance hybrid. The resonance structure for N, N-dimethylacetamide [CH3CON(CH3)2] is to be drawn and how it accounts for the weakening of the C=O bond is to be explained.

Concept introduction:

The lone pair on nitrogen atom can take part in resonance with C=O bond in amide. The C-O single bond is weaker than C=O bond. The C-O single bond character decreases the stiffness of C=O bond. The stretching frequency of C=O band lowers by the Weakening of C=O bond.

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Rank the labeled protons (Ha-Hd) in order of increasing acidity, starting with the least acidic. НОН НЬ OHd Онс

Can the target compound at right be efficiently synthesized in good yield from the unsubstituted benzene at left? ? starting material target If so, draw a synthesis below. If no synthesis using reagents ALEKS recognizes is possible, check the box under the drawing area. Be sure you follow the standard ALEKS rules for submitting syntheses. + More... Note for advanced students: you may assume that you are using a large excess of benzene as your starting material. C :0 T Add/Remove step G

The following equations represent the formation of compound MX. What is the AH for the electron affinity of X (g)? X₂ (g) → 2X (g) M (s) → M (g) M (g) M (g) + e- AH = 60 kJ/mol AH = 22 kJ/mol X (g) + e-X (g) M* (g) +X (g) → MX (s) AH = 118 kJ/mol AH = ? AH = -190 kJ/mol AH = -100 kJ/mol a) -80 kJ b) -30 kJ c) -20 kJ d) 20 kJ e) 156 kJ

Answer 2

Question

Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter 15, Problem 15.43P

Interpretation Introduction

Interpretation:

In Section 15.5c, we learned that the frequency of the C=O stretch for an amide is lower than it is for a ketone, suggesting that the C=O bond is weaker in an amide. This weakening of the C=O bond can be explained by the significant contribution from one of its resonance structures toward the resonance hybrid. The resonance structure for N, N-dimethylacetamide [CH3CON(CH3)2] is to be drawn and how it accounts for the weakening of the C=O bond is to be explained.

Concept introduction:

The lone pair on nitrogen atom can take part in resonance with C=O bond in amide. The C-O single bond is weaker than C=O bond. The C-O single bond character decreases the stiffness of C=O bond. The stretching frequency of C=O band lowers by the Weakening of C=O bond.

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Answer 3

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Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter 15, Problem 15.43P

Interpretation Introduction

Interpretation:

In Section 15.5c, we learned that the frequency of the C=O stretch for an amide is lower than it is for a ketone, suggesting that the C=O bond is weaker in an amide. This weakening of the C=O bond can be explained by the significant contribution from one of its resonance structures toward the resonance hybrid. The resonance structure for N, N-dimethylacetamide [CH3CON(CH3)2] is to be drawn and how it accounts for the weakening of the C=O bond is to be explained.

Concept introduction:

The lone pair on nitrogen atom can take part in resonance with C=O bond in amide. The C-O single bond is weaker than C=O bond. The C-O single bond character decreases the stiffness of C=O bond. The stretching frequency of C=O band lowers by the Weakening of C=O bond.

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Answer 4

Question

Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter 15, Problem 15.43P

Interpretation Introduction