Resonance contributor for the enolate ion formed from the given compounds has to be identified. Concept Introduction: Tautomerism is the ability of a molecule to exist in more than one chemical form. Tautomers are formed by the migration of a hydrogen atom, accompanied by the switching of a single and neighboring double bond. The only difference in keto-enol tautomers is the location of hydrogen and double bond. Enol tautomer is much less stable than the keto tautomer. Enol tautomer is more stable when enol tautomer is aromatic or when the double bonds are conjugated. Resonance: The delocalization of electrons which is characterized as several structural changes.

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Answer 1

Question

Chapter 13.3, Problem 8P

(a)

Interpretation Introduction

Interpretation:

Resonance contributor for the enolate ion formed from the given compounds has to be identified.

Concept Introduction:

Tautomerism is the ability of a molecule to exist in more than one chemical form. Tautomers are formed by the migration of a hydrogen atom, accompanied by the switching of a single and neighboring double bond.

The only difference in keto-enol tautomers is the location of hydrogen and double bond.

Enol tautomer is much less stable than the keto tautomer.

Enol tautomer is more stable when enol tautomer is aromatic or when the double bonds are conjugated.

Resonance: The delocalization of electrons which is characterized as several structural changes.

(b)

Interpretation Introduction

Interpretation:

Resonance contributor for the enolate ion formed from the given compounds has to be identified.

Concept Introduction:

Tautomerism is the ability of a molecule to exist in more than one chemical form. Tautomers are formed by the migration of a hydrogen atom, accompanied by the switching of a single and neighboring double bond.

The only difference in keto-enol tautomers is the location of hydrogen and double bond.

Enol tautomer is much less stable than the keto tautomer.

Enol tautomer is more stable when enol tautomer is aromatic or when the double bonds are conjugated.

Resonance: The delocalization of electrons which is characterized as several structural changes.

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Answer 2

Question

Chapter 13.3, Problem 8P

(a)

Interpretation Introduction

Interpretation:

Resonance contributor for the enolate ion formed from the given compounds has to be identified.

Concept Introduction:

Tautomerism is the ability of a molecule to exist in more than one chemical form. Tautomers are formed by the migration of a hydrogen atom, accompanied by the switching of a single and neighboring double bond.

The only difference in keto-enol tautomers is the location of hydrogen and double bond.

Enol tautomer is much less stable than the keto tautomer.

Enol tautomer is more stable when enol tautomer is aromatic or when the double bonds are conjugated.

Resonance: The delocalization of electrons which is characterized as several structural changes.

(b)

Interpretation Introduction

Interpretation:

Resonance contributor for the enolate ion formed from the given compounds has to be identified.

Concept Introduction:

Tautomerism is the ability of a molecule to exist in more than one chemical form. Tautomers are formed by the migration of a hydrogen atom, accompanied by the switching of a single and neighboring double bond.

The only difference in keto-enol tautomers is the location of hydrogen and double bond.

Enol tautomer is much less stable than the keto tautomer.

Enol tautomer is more stable when enol tautomer is aromatic or when the double bonds are conjugated.

Resonance: The delocalization of electrons which is characterized as several structural changes.

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Answer 3

Question

Chapter 13.3, Problem 8P

(a)

Interpretation Introduction

Interpretation:

Resonance contributor for the enolate ion formed from the given compounds has to be identified.

Concept Introduction:

Tautomerism is the ability of a molecule to exist in more than one chemical form. Tautomers are formed by the migration of a hydrogen atom, accompanied by the switching of a single and neighboring double bond.

The only difference in keto-enol tautomers is the location of hydrogen and double bond.

Enol tautomer is much less stable than the keto tautomer.

Enol tautomer is more stable when enol tautomer is aromatic or when the double bonds are conjugated.

Resonance: The delocalization of electrons which is characterized as several structural changes.

(b)

Interpretation Introduction

Interpretation:

Resonance contributor for the enolate ion formed from the given compounds has to be identified.

Concept Introduction:

Tautomerism is the ability of a molecule to exist in more than one chemical form. Tautomers are formed by the migration of a hydrogen atom, accompanied by the switching of a single and neighboring double bond.

The only difference in keto-enol tautomers is the location of hydrogen and double bond.

Enol tautomer is much less stable than the keto tautomer.

Enol tautomer is more stable when enol tautomer is aromatic or when the double bonds are conjugated.

Resonance: The delocalization of electrons which is characterized as several structural changes.

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Answer 4

Question

Chapter 13.3, Problem 8P

(a)

Interpretation Introduction

Interpretation:

Resonance contributor for the enolate ion formed from the given compounds has to be identified.

Concept Introduction:

Tautomerism is the ability of a molecule to exist in more than one chemical form. Tautomers are formed by the migration of a hydrogen atom, accompanied by the switching of a single and neighboring double bond.

The only difference in keto-enol tautomers is the location of hydrogen and double bond.

Enol tautomer is much less stable than the keto tautomer.

Enol tautomer is more stable when enol tautomer is aromatic or when the double bonds are conjugated.

Resonance: The delocalization of electrons which is characterized as several structural changes.

(b)

Interpretation Introduction

Interpretation:

Resonance contributor for the enolate ion formed from the given compounds has to be identified.

Concept Introduction:

Tautomerism is the ability of a molecule to exist in more than one chemical form. Tautomers are formed by the migration of a hydrogen atom, accompanied by the switching of a single and neighboring double bond.

The only difference in keto-enol tautomers is the location of hydrogen and double bond.

Enol tautomer is much less stable than the keto tautomer.

Enol tautomer is more stable when enol tautomer is aromatic or when the double bonds are conjugated.

Resonance: The delocalization of electrons which is characterized as several structural changes.

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Answer 5

Chapter 13.3, Problem 8P

(a)

Interpretation Introduction

Interpretation:

Resonance contributor for the enolate ion formed from the given compounds has to be identified.

Concept Introduction:

Tautomerism is the ability of a molecule to exist in more than one chemical form. Tautomers are formed by the migration of a hydrogen atom, accompanied by the switching of a single and neighboring double bond.

The only difference in keto-enol tautomers is the location of hydrogen and double bond.

Enol tautomer is much less stable than the keto tautomer.

Enol tautomer is more stable when enol tautomer is aromatic or when the double bonds are conjugated.

Resonance: The delocalization of electrons which is characterized as several structural changes.

(b)

Interpretation Introduction

Interpretation:

Resonance contributor for the enolate ion formed from the given compounds has to be identified.

Concept Introduction:

Tautomerism is the ability of a molecule to exist in more than one chemical form. Tautomers are formed by the migration of a hydrogen atom, accompanied by the switching of a single and neighboring double bond.

The only difference in keto-enol tautomers is the location of hydrogen and double bond.

Enol tautomer is much less stable than the keto tautomer.

Enol tautomer is more stable when enol tautomer is aromatic or when the double bonds are conjugated.

Resonance: The delocalization of electrons which is characterized as several structural changes.

Answer 6

Chapter 13.3, Problem 8P

(a)

Interpretation Introduction

Interpretation:

Resonance contributor for the enolate ion formed from the given compounds has to be identified.

Concept Introduction:

Tautomerism is the ability of a molecule to exist in more than one chemical form. Tautomers are formed by the migration of a hydrogen atom, accompanied by the switching of a single and neighboring double bond.

The only difference in keto-enol tautomers is the location of hydrogen and double bond.

Enol tautomer is much less stable than the keto tautomer.

Enol tautomer is more stable when enol tautomer is aromatic or when the double bonds are conjugated.

Resonance: The delocalization of electrons which is characterized as several structural changes.

Answer 7

Chapter 13.3, Problem 8P

(a)

Interpretation Introduction

Interpretation:

Resonance contributor for the enolate ion formed from the given compounds has to be identified.

Concept Introduction:

Tautomerism is the ability of a molecule to exist in more than one chemical form. Tautomers are formed by the migration of a hydrogen atom, accompanied by the switching of a single and neighboring double bond.

The only difference in keto-enol tautomers is the location of hydrogen and double bond.

Enol tautomer is much less stable than the keto tautomer.

Enol tautomer is more stable when enol tautomer is aromatic or when the double bonds are conjugated.

Resonance: The delocalization of electrons which is characterized as several structural changes.

Answer 8

(b)

Interpretation Introduction

Interpretation:

Resonance contributor for the enolate ion formed from the given compounds has to be identified.

Concept Introduction:

Tautomerism is the ability of a molecule to exist in more than one chemical form. Tautomers are formed by the migration of a hydrogen atom, accompanied by the switching of a single and neighboring double bond.

The only difference in keto-enol tautomers is the location of hydrogen and double bond.

Enol tautomer is much less stable than the keto tautomer.

Enol tautomer is more stable when enol tautomer is aromatic or when the double bonds are conjugated.

Resonance: The delocalization of electrons which is characterized as several structural changes.

Answer 9

(b)

Interpretation Introduction

Interpretation:

Resonance contributor for the enolate ion formed from the given compounds has to be identified.

Concept Introduction:

Tautomerism is the ability of a molecule to exist in more than one chemical form. Tautomers are formed by the migration of a hydrogen atom, accompanied by the switching of a single and neighboring double bond.

The only difference in keto-enol tautomers is the location of hydrogen and double bond.

Enol tautomer is much less stable than the keto tautomer.

Enol tautomer is more stable when enol tautomer is aromatic or when the double bonds are conjugated.

Resonance: The delocalization of electrons which is characterized as several structural changes.

Answer 10

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Answer 11

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Answer 12

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Answer 13

Ch. 13.1 - Identify the most acidic hydrogen in each...Ch. 13.1 - Prob. 2P Ch. 13.1 - Prob. 3P Ch. 13.1 - Prob. 4P Ch. 13.1 - Explain why HO cannot remove a proton from the...Ch. 13.2 - Prob. 6P Ch. 13.2 - Prob. 7P Ch. 13.3 - Prob. 8P Ch. 13.3 - Prob. 9P Ch. 13.3 - Prob. 10P

Solution Summary: The author explains that the resonance contributor for the enolate ion formed from the given compounds has to be identified.

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Chapter 13 Solutions