How H 2 C=CH 2 is produced is to be determined using mechanism. Concept introduction: Alkene metathesis reactions generally take place under equilibrium conditions. Therefore, with the product alkenes having similar thermodynamic stabilities to the reactant alkene, the yield is relatively low. As is the case with any chemical equilibrium , Le Châtelier’s principle can be exploited by removing products as they form. If the reactants are terminal alkenes, then one of the products is ethene, which is a gas that escapes the system as it forms.

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Answer 1

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Chapter 19, Problem 19.10YT

Interpretation Introduction

Interpretation:

How H₂C=CH₂ is produced is to be determined using mechanism.

Concept introduction:

Alkene metathesis reactions generally take place under equilibrium conditions. Therefore, with the product alkenes having similar thermodynamic stabilities to the reactant alkene, the yield is relatively low. As is the case with any chemical equilibrium, Le Châtelier’s principle can be exploited by removing products as they form. If the reactants are terminal alkenes, then one of the products is ethene, which is a gas that escapes the system as it forms.

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H₂C H H₁C Br NBS CH, CH₂ CC, hv **You may assume that Br-Br is formed by a side reaction that occurs (which we discussed in class). This is useful for one of the steps of the mechanism.

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Answer 2

Question

Chapter 19, Problem 19.10YT

Interpretation Introduction

Interpretation:

How H₂C=CH₂ is produced is to be determined using mechanism.

Concept introduction:

Alkene metathesis reactions generally take place under equilibrium conditions. Therefore, with the product alkenes having similar thermodynamic stabilities to the reactant alkene, the yield is relatively low. As is the case with any chemical equilibrium, Le Châtelier’s principle can be exploited by removing products as they form. If the reactants are terminal alkenes, then one of the products is ethene, which is a gas that escapes the system as it forms.

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Answer 3

Question

Chapter 19, Problem 19.10YT

Interpretation Introduction

Interpretation:

How H₂C=CH₂ is produced is to be determined using mechanism.

Concept introduction:

Alkene metathesis reactions generally take place under equilibrium conditions. Therefore, with the product alkenes having similar thermodynamic stabilities to the reactant alkene, the yield is relatively low. As is the case with any chemical equilibrium, Le Châtelier’s principle can be exploited by removing products as they form. If the reactants are terminal alkenes, then one of the products is ethene, which is a gas that escapes the system as it forms.

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Answer 4

Question

Chapter 19, Problem 19.10YT

Interpretation Introduction

Interpretation:

How H₂C=CH₂ is produced is to be determined using mechanism.

Concept introduction:

Alkene metathesis reactions generally take place under equilibrium conditions. Therefore, with the product alkenes having similar thermodynamic stabilities to the reactant alkene, the yield is relatively low. As is the case with any chemical equilibrium, Le Châtelier’s principle can be exploited by removing products as they form. If the reactants are terminal alkenes, then one of the products is ethene, which is a gas that escapes the system as it forms.

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Answer 5

Chapter 19, Problem 19.10YT

Interpretation Introduction

Interpretation:

How H₂C=CH₂ is produced is to be determined using mechanism.

Concept introduction:

Alkene metathesis reactions generally take place under equilibrium conditions. Therefore, with the product alkenes having similar thermodynamic stabilities to the reactant alkene, the yield is relatively low. As is the case with any chemical equilibrium, Le Châtelier’s principle can be exploited by removing products as they form. If the reactants are terminal alkenes, then one of the products is ethene, which is a gas that escapes the system as it forms.

Answer 6

Chapter 19, Problem 19.10YT

Interpretation Introduction

Interpretation:

How H₂C=CH₂ is produced is to be determined using mechanism.

Concept introduction:

Alkene metathesis reactions generally take place under equilibrium conditions. Therefore, with the product alkenes having similar thermodynamic stabilities to the reactant alkene, the yield is relatively low. As is the case with any chemical equilibrium, Le Châtelier’s principle can be exploited by removing products as they form. If the reactants are terminal alkenes, then one of the products is ethene, which is a gas that escapes the system as it forms.

Answer 7

Chapter 19, Problem 19.10YT

Interpretation Introduction

Interpretation:

How H₂C=CH₂ is produced is to be determined using mechanism.

Concept introduction:

Alkene metathesis reactions generally take place under equilibrium conditions. Therefore, with the product alkenes having similar thermodynamic stabilities to the reactant alkene, the yield is relatively low. As is the case with any chemical equilibrium, Le Châtelier’s principle can be exploited by removing products as they form. If the reactants are terminal alkenes, then one of the products is ethene, which is a gas that escapes the system as it forms.

Answer 8

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Answer 11

Ch. 19 - Prob. 19.1P Ch. 19 - Prob. 19.2P Ch. 19 - Prob. 19.3P Ch. 19 - Prob. 19.4P Ch. 19 - Prob. 19.5P Ch. 19 - Prob. 19.6P Ch. 19 - Prob. 19.7P Ch. 19 - Prob. 19.8P Ch. 19 - Prob. 19.9P Ch. 19 - Prob. 19.10P

Solution Summary: The author explains how H 2 C=CH 2 is produced using mechanism. Alkene metathesis reactions generally take place under equilibrium conditions.

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