Essential Organic Chemistry (3rd Edition)
Essential Organic Chemistry (3rd Edition)
3rd Edition
ISBN: 9780321937711
Author: Paula Yurkanis Bruice
Publisher: PEARSON
Question
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Chapter 6.5, Problem 9P

(a)

Interpretation Introduction

Interpretation:

The number of transition states present in acid catalyzed reaction of alkene has to be determined.

Concept introduction:

Acid Catalyzed Hydration Reaction: The reaction involves breaking of phi bonds between carbon-carbon multiple bonds and addition of alcohol to more substituted position of carbon in the molecule.

First step is the acid donates proton to the alkene which leads to the formation of more stable carbo cation.

Then, the water is added to the given alkene through acid catalyzed reaction where the water gets added to the carbo cation finally, the removal of one proton from oxonium ion (oxygen with one positive charge) using water results in the formation of product.

Rate determining step: In a chemical reaction the rate determining step is the slowest step in which the rate of the reaction depends on the rate of that slowest step.

Activation energy: It is defined as the minimum energy required by the reacting species in order to undergo chemical reaction.

Intermediate species: It is the species formed during the middle of the chemical reaction between the reactant and the desired product.

Transition State: The state which defines the highest potential energy with respect to reaction co-ordinate between reactant and product. It is usually denoted by using the symbol ‘≠’.

Rate constant: The rate constant for a chemical reaction is the proportionality term in the chemical reaction rate law which gives the relationship between the rate and the concentration of the reactant present in the chemical reaction.

(b)

Interpretation Introduction

Interpretation:

The number of intermediate present in the given reaction has to be determined.

Concept introduction:

Rate determining step: In a chemical reaction the rate determining step is the slowest step in which the rate of the reaction depends on the rate of that slowest step.

Activation energy: It is defined as the minimum energy required by the reacting species in order to undergo chemical reaction.

Acid Catalyzed Hydration Reaction: The reaction involves breaking of phi bonds between carbon-carbon multiple bonds and addition of alcohol to more substituted position of carbon in the molecule.

First step is the acid donates proton to the alkene which leads to the formation of more stable carbo cation.

Then, the water is added to the given alkene through acid catalyzed reaction where the water gets added to the carbo cation finally, the removal of one proton from oxonium ion (oxygen with one positive charge) using water results in the formation of product.

Intermediate species: It is the species formed during the middle of the chemical reaction between the reactant and the desired product.

Transition State: The state which defines the highest potential energy with respect to reaction co-ordinate between reactant and product. It is usually denoted by using the symbol ‘≠’.

(c)

Interpretation Introduction

Interpretation:

The step with smallest rate constant has to be determined.

Concept introduction:

Rate determining step: In a chemical reaction the rate determining step is the slowest step in which the rate of the reaction depends on the rate of that slowest step.

Activation energy: It is defined as the minimum energy required by the reacting species in order to undergo chemical reaction.

Acid Catalyzed Hydration Reaction: The reaction involves breaking of phi bonds between carbon-carbon multiple bonds and addition of alcohol to more substituted position of carbon in the molecule.

First step is the acid donates proton to the alkene which leads to the formation of more stable carbo cation.

Then, the water is added to the given alkene through acid catalyzed reaction where the water gets added to the carbo cation finally, the removal of one proton from oxonium ion (oxygen with one positive charge) using water results in the formation of product.

Intermediate species: It is the species formed during the middle of the chemical reaction between the reactant and the desired product.

Transition State: The state which defines the highest potential energy with respect to reaction co-ordinate between reactant and product. It is usually denoted by using the symbol ‘≠’.

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Write why is True if the statement conforms to the concept of rate law and also write why is False if it does not. 1. Rate law states that overall order of reaction can be determined by adding the reactionorders of the reactants.reactant concentration.3. All reactions proceed at the same rate.4. The balanced equation can be used to determine the rate of reaction.5. The slowly reactive or unreactive speciesin a reaction can be identified using rate law.
28. Activated complex is a substance which 35. If the reactants are disappeared in more is than one hour, it means the reaction is a. Stable c. can be isolated a. Faster c. very fast b. unstable d. can exist as product b. Slower d. very slow 29. With raise in temperature rate of reaction increases due to 36. Anthracene is an example of a. Increase in collision a. Homocyclic hydrocarbons b. decrease in activated complex b. heterocyclic hydrocarbons c. increase in kinetic energy of the c. polycyclic hydrocarbons reactant molecules d. PАHS d. more number of molecules attain 37. Which of the following is/are energy of activation heterocyclic organic compounds 30. Activation energy depends upon а. Рyridine c. furan a. Temperature c. both a and b b. thiophene d. all b. catalyst d. none 38. On the basis of functional group organic 31. Energy of activation is expected to be compounds are classified as required more for one of the following a. Hydrocarbons a. Exothermic reaction b. derivatives…
13. In the following energy level profile for the addition of HBR to alkene, indicate by the following letters: A. The reactants B. The products C. The carbocation intermediate D. The activation energy of the slow step E. The activation energy of the fast step F. The overall AE of the reaction Is the overall reaction endothermic or exothermic? Reaction Progress Energy

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Essential Organic Chemistry (3rd Edition)

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