Homework Answers
Answer :
Energy profile diagram for E1 reaction shown in the image attached
From the energy profile diagram , we can see that there are 2 transition state in the reaction mechanism and proceed through a carbocation intermediate . (Statement 1 and 3 are correct)
As activation energy of first step is higher than the second step , so first step is rate determining step (statement 4 is correct) .
Incorrect statement is statement (2) - first step is electrophilic elimination. Actually first step is removal of leaving group to generate carbocation . Since leaving group is Cl- it is nucleophilic in nature not electrophilic.
![Answert diagram for El reaction Energy Profile CH3 Reactantt uc-&-ce CH3 Transition state 1 [(4, - ce] transition state 2 CH3](http://img.homeworklib.com/questions/e23bffb0-d373-11eb-8edb-d371e6c90181.png?x-oss-process=image/resize,w_560)
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Question 4 Which is NOT true of a free energy diagram for an E1 reaction? o...
Which is not true of the energy diagram for an SN2 reaction? A) It includes local...
Which is not true of the energy diagram for an SN2 reaction? A) It includes local energy minima between transition states. B) It includes intermediates that are higher in energy than reactants or products. C) The rate determining step involves the substrate only. D) It includes two transition states. E) All of the above are untrue. Please explain which is the correct answer?
With explanation please -- thanks! 1.(12 pts) Review the energy profile diagram below for an E1...
With explanation please -- thanks!
1.(12 pts) Review the energy profile diagram below for an E1 reaction involving a carbocation rearrangement, and answer the following questions. Gibbs free energy H-A 20: H-A H . reaction coordinate A) Draw the intermediate C: B) Draw the intermediate G: D) Is the overall reaction (circle one answer): C) Which step is rate-determining? Answer like this (with letters): X-> Y exothermal isothermal endorgornic O -> endothermal exergonic isochoric
I selected the second answer and it was incorrect. QUESTION 2 Which is true of a...
I selected the second answer and it was
incorrect.
QUESTION 2 Which is true of a free energy diagram for an SN2 reaction? 0 It includes a carbocation intermediate. 0 It includes intermediates that are higher in energy than reactants or products. o It includes one transition state. o It always shows that the reaction is net exothermic. 0 The reactants are always found at a lower energy than the products.
Which is true of a free energy diagram tor an S_N 1 reaction? It shows one...
Which is true of a free energy diagram tor an S_N 1 reaction? It shows one transition state. It always shows that the reaction is net exothermic. It never shows intermediates. It always shows that the reaction is net endothermic. It always includes multiple energy barriers. Which of the following bases would make an E_2 reaction occur at the fastest rate? I II III IV V
Choose the correct reaction coordinate diagram for a two-step reaction in which the first step is...
Choose the correct reaction coordinate diagram for a two-step reaction in which the first step is endergonic, the second step is exergonic, and the overall reaction is endergonic. Pay attention to the reactants, products, intermediates, and transition states A reactants) B = first transition state C = intermediate D = second transition state E =product(s) Free energy Progress of the action A = reactant(s) B = intermediate C = first transition state D = second transition state E = product(s)...
41. What is the name given to the reaction species that lies at an energy minimum between steps on a reaction energ...
41. What is the name given to the reaction species that lies at an energy minimum between steps on a reaction energy diagram? A) Transition state B) Activation energy C) Reactive intermediate D) Equilibrium product 42. Which of the following statements about a two-step reaction mechanism is true? A) The transition states are located at energy minima. B) Each step is characterized by its own value of AH and E. C) The rate-determining step has the lower energy transition state....
answer all questions 7. Draw and compare the free-energy diagram (potential energy curve) for the E1...
answer all questions
7. Draw and compare the free-energy diagram (potential energy curve) for the E1 and E2 reactions for a generic reaction shown below (LG-leaving group). Include all transition states and intermediates. E1 E E rxn coord. rxn coord. 8. For the following 2 substitution reactions, label the nucleophile, substrate, and leaving group. CH30CH2CH3 + Nal a) CH31+ CH3CH2ONA (CH3) 3 COCH3 + CH30H2 + Cl- b) 2CH30H+(CH3)3CCI 9 For each of the following pair of reactions, circle which...
Part A Choose the correct reaction coordinate diagram for a two-step reaction in which the first...
Part A Choose the correct reaction coordinate diagram for a two-step reaction in which the first episodergonic the second step is and transition states ergonic and the overall reaction is ondergoni Paytention to the reacts product e s B C D reactant) intermediate first transition state econd transition state products) E Progress of the reaction A B C reactant) fin i tion state intermediate B C Free energy intermediate first transition state De second transition state E-products) Progress of the...
Select the true statement about the two-step reaction represented in the energy diagram shown below. Energy...
Select the true statement about the two-step reaction represented in the energy diagram shown below. Energy om Reaction Coordinate B. The reaction is endergonic and the second step is the rate-determining step. The reaction is exergonic and the first step is the rate-determining step. с. The reaction is endergonic and the first step is the rate-determining step. The reaction is exergonic and the seconds step is the rate-determining step. D.
4 pts Question 6 The free energy diagram for this reaction hav[ Select ] transition state(s)...
4 pts Question 6 The free energy diagram for this reaction hav[ Select ] transition state(s) and [Select) intermediat 3 Ü 13° Question 6 4 pts The free energy diagram for this reaction has (Select] + transition state(s) and ✓ Select] intermediate(s). + HS -
With explanation please -- thanks!
1.(12 pts) Review the energy profile diagram below for an E1 reaction involving a carbocation rearrangement, and answer the following questions. Gibbs free energy H-A 20: H-A H . reaction coordinate A) Draw the intermediate C: B) Draw the intermediate G: D) Is the overall reaction (circle one answer): C) Which step is rate-determining? Answer like this (with letters): X-> Y exothermal isothermal endorgornic O -> endothermal exergonic isochoric
I selected the second answer and it was
incorrect.
QUESTION 2 Which is true of a free energy diagram for an SN2 reaction? 0 It includes a carbocation intermediate. 0 It includes intermediates that are higher in energy than reactants or products. o It includes one transition state. o It always shows that the reaction is net exothermic. 0 The reactants are always found at a lower energy than the products.
Which is true of a free energy diagram tor an S_N 1 reaction? It shows one transition state. It always shows that the reaction is net exothermic. It never shows intermediates. It always shows that the reaction is net endothermic. It always includes multiple energy barriers. Which of the following bases would make an E_2 reaction occur at the fastest rate? I II III IV V
Choose the correct reaction coordinate diagram for a two-step reaction in which the first step is endergonic, the second step is exergonic, and the overall reaction is endergonic. Pay attention to the reactants, products, intermediates, and transition states A reactants) B = first transition state C = intermediate D = second transition state E =product(s) Free energy Progress of the action A = reactant(s) B = intermediate C = first transition state D = second transition state E = product(s)...
41. What is the name given to the reaction species that lies at an energy minimum between steps on a reaction energy diagram? A) Transition state B) Activation energy C) Reactive intermediate D) Equilibrium product 42. Which of the following statements about a two-step reaction mechanism is true? A) The transition states are located at energy minima. B) Each step is characterized by its own value of AH and E. C) The rate-determining step has the lower energy transition state....
answer all questions
7. Draw and compare the free-energy diagram (potential energy curve) for the E1 and E2 reactions for a generic reaction shown below (LG-leaving group). Include all transition states and intermediates. E1 E E rxn coord. rxn coord. 8. For the following 2 substitution reactions, label the nucleophile, substrate, and leaving group. CH30CH2CH3 + Nal a) CH31+ CH3CH2ONA (CH3) 3 COCH3 + CH30H2 + Cl- b) 2CH30H+(CH3)3CCI 9 For each of the following pair of reactions, circle which...
Part A Choose the correct reaction coordinate diagram for a two-step reaction in which the first episodergonic the second step is and transition states ergonic and the overall reaction is ondergoni Paytention to the reacts product e s B C D reactant) intermediate first transition state econd transition state products) E Progress of the reaction A B C reactant) fin i tion state intermediate B C Free energy intermediate first transition state De second transition state E-products) Progress of the...
Select the true statement about the two-step reaction represented in the energy diagram shown below. Energy om Reaction Coordinate B. The reaction is endergonic and the second step is the rate-determining step. The reaction is exergonic and the first step is the rate-determining step. с. The reaction is endergonic and the first step is the rate-determining step. The reaction is exergonic and the seconds step is the rate-determining step. D.
4 pts Question 6 The free energy diagram for this reaction hav[ Select ] transition state(s) and [Select) intermediat 3 Ü 13° Question 6 4 pts The free energy diagram for this reaction has (Select] + transition state(s) and ✓ Select] intermediate(s). + HS -
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