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3. For the Sul reaction given the reaction coordinate diagram is as shown Stop 1 to...
5. For the Sul reaction given, the reaction coordinate diagram is as shown. step to t.....
5. For the Sul reaction given, the reaction coordinate diagram is as shown. step to t.. supstintos + Br + OH2 -O-H + HBO -Br 79-H + OH2 Br (a) Which step is the rate determining step for the reaction? Draw the activation energy for that step into the above diagram. (b) Draw the structure of the highest energy intermediate in the reaction. (e) Given the following bond dissociation energies (in kcal/mol), calculate the AH for the overall reaction. Tertiary...
2. Draw a labeled reaction-energy diagram (graph of potential energy versus reaction coordinate) for a three-step...
2. Draw a labeled reaction-energy diagram (graph of potential energy versus reaction coordinate) for a three-step overall exothermic reaction with the A. first step being the rate-determining step B. third step being the rate-determining step Label each graph with the following: reactants (r), transition states (ts.), intermediates (int.), products (p). activation energies (Ea), and overall standard heat of reaction (AH). (Note: Each subscript, x, needs to be a number that refers to the appropriate primary mechanistic step. For example, Ea,...
Name: 17. Consider the two step reaction A B-C (shown below). Which stepp is the rate...
Name: 17. Consider the two step reaction A B-C (shown below). Which stepp is the rate determining step and is the overall reaction exothermic or endothermic? (4 pts) Energy A Reaction Coordinate 18. The following is an energy vs. reaction coordinate graph for a radical bromination. (6 pts) a. Give the ratios of the tertiary to primary product b. Using the graph explain them how this occurs c. Using the graph what does the Hammond postulate tell us about the...
action coordinate diagram, for the reaction 0. All parts of this question relate to the following...
action coordinate diagram, for the reaction 0. All parts of this question relate to the following reaction coordinate diagram A+B+C ....... D+ E Energy B+C+X D+E A+B+C (a) Write a mechanism for the forward reaction, showing all elementary steps. (b) What intermediates (ie, not reactants or products) are present in this mechanism? (c) Which is the rate determining step for the reaction? (d) Mark the activation energy for the rate-determining step on the diagram above. (e) What is the rate...
The reaction below proceeds through an exothermic E2 mechanism. Draw the reaction coordinate diagram for this...
The reaction below proceeds through an exothermic E2
mechanism. Draw the reaction coordinate diagram for this reaction,
and label all activation energies, delta Gs, and transition states.
Draw the structures of the starting materials, products, and any
interediates onto your chart where they belong
NaH Br
7. (10 pts, 5 pts each) For the following reaction and its reaction coordinate diagram, describe...
7. (10 pts, 5 pts each) For the following reaction and its reaction coordinate diagram, describe the following: 1) What is the rate-determining step for the left to the right reaction? 2) Point out the activation energy for the rate-determining step in the left to right reaction. Free energy- Resonance stabilization in the reactant Resonance stabilization in the product Reaction coordinate-
2). Consider the following intramolecular S2 reaction. no ♡ + HI A) (5 pts) Use the...
2). Consider the following intramolecular S2 reaction. no ♡ + HI A) (5 pts) Use the table of Bond Dissociation Enthalpies (at the back of the exam) to calculate the approximate ΔΗπη. B) (3 pts) Is the reaction endothermic or exothermic? Why? C) (6 pts) Draw the Reaction Energy Coordinate Diagram. Label the axes, reactant(s), product(s), transition state(s), intermediate(s), activation energy, and reaction enthalpy. D) (3 pts) In regards to entropy, would you expect the reaction to be favorable, or...
BO D Which of ten The reaction of A to B. B) The reaction of B...
BO D Which of ten The reaction of A to B. B) The reaction of B to C. C) The reaction of C to D. D) All three steps occur at the same rate: there is no rate-limiting step. E) The most exothermic step is rate-limiting. esaretim Rank the following carbocations in order of stability. (The most stable is first.) > III II B) II > > III C) III > > II I > Il > III D 36)...
6. All parts of this question relate to the following reaction coordinate diagram, for the reaction...
6. All parts of this question relate to the following reaction coordinate diagram, for the reaction A + B + C -- --> D+E Free Energy B+C+X D+E A+B+C (a) Write a mechanism for the forward reaction, showing all elementary steps. (b) What intermediates (ie, not reactants or products) are present in this mechanism? (a) Write a mechanism for the forward reaction, showing all elementary steps. (b) What intermediates (i.e, not reactants or products) are present in this mechanism? (e)...
ENED NERGY VS REACTION COORDINATE DIAGRAM MODEL T ction coordinate graph is used to show how...
ENED NERGY VS REACTION COORDINATE DIAGRAM MODEL T ction coordinate graph is used to show how the potential energy of the reactants become products. A reaction coordinate is a measure of the progress of the reac- An energy vs. reaction changes as they becom along the reaction pathway. Figure 1 Transition State Energy activation energy Reactants AG energy change at constant pressure Products Reaction Coordinate KEY QUESTIONS 1. Is the change in energy from reactants to products in Model 1...
5. For the Sul reaction given, the reaction coordinate diagram is as shown. step to t.. supstintos + Br + OH2 -O-H + HBO -Br 79-H + OH2 Br (a) Which step is the rate determining step for the reaction? Draw the activation energy for that step into the above diagram. (b) Draw the structure of the highest energy intermediate in the reaction. (e) Given the following bond dissociation energies (in kcal/mol), calculate the AH for the overall reaction. Tertiary...
2. Draw a labeled reaction-energy diagram (graph of potential energy versus reaction coordinate) for a three-step overall exothermic reaction with the A. first step being the rate-determining step B. third step being the rate-determining step Label each graph with the following: reactants (r), transition states (ts.), intermediates (int.), products (p). activation energies (Ea), and overall standard heat of reaction (AH). (Note: Each subscript, x, needs to be a number that refers to the appropriate primary mechanistic step. For example, Ea,...
Name: 17. Consider the two step reaction A B-C (shown below). Which stepp is the rate determining step and is the overall reaction exothermic or endothermic? (4 pts) Energy A Reaction Coordinate 18. The following is an energy vs. reaction coordinate graph for a radical bromination. (6 pts) a. Give the ratios of the tertiary to primary product b. Using the graph explain them how this occurs c. Using the graph what does the Hammond postulate tell us about the...
action coordinate diagram, for the reaction 0. All parts of this question relate to the following reaction coordinate diagram A+B+C ....... D+ E Energy B+C+X D+E A+B+C (a) Write a mechanism for the forward reaction, showing all elementary steps. (b) What intermediates (ie, not reactants or products) are present in this mechanism? (c) Which is the rate determining step for the reaction? (d) Mark the activation energy for the rate-determining step on the diagram above. (e) What is the rate...
The reaction below proceeds through an exothermic E2
mechanism. Draw the reaction coordinate diagram for this reaction,
and label all activation energies, delta Gs, and transition states.
Draw the structures of the starting materials, products, and any
interediates onto your chart where they belong
NaH Br
7. (10 pts, 5 pts each) For the following reaction and its reaction coordinate diagram, describe the following: 1) What is the rate-determining step for the left to the right reaction? 2) Point out the activation energy for the rate-determining step in the left to right reaction. Free energy- Resonance stabilization in the reactant Resonance stabilization in the product Reaction coordinate-
2). Consider the following intramolecular S2 reaction. no ♡ + HI A) (5 pts) Use the table of Bond Dissociation Enthalpies (at the back of the exam) to calculate the approximate ΔΗπη. B) (3 pts) Is the reaction endothermic or exothermic? Why? C) (6 pts) Draw the Reaction Energy Coordinate Diagram. Label the axes, reactant(s), product(s), transition state(s), intermediate(s), activation energy, and reaction enthalpy. D) (3 pts) In regards to entropy, would you expect the reaction to be favorable, or...
BO D Which of ten The reaction of A to B. B) The reaction of B to C. C) The reaction of C to D. D) All three steps occur at the same rate: there is no rate-limiting step. E) The most exothermic step is rate-limiting. esaretim Rank the following carbocations in order of stability. (The most stable is first.) > III II B) II > > III C) III > > II I > Il > III D 36)...
6. All parts of this question relate to the following reaction coordinate diagram, for the reaction A + B + C -- --> D+E Free Energy B+C+X D+E A+B+C (a) Write a mechanism for the forward reaction, showing all elementary steps. (b) What intermediates (ie, not reactants or products) are present in this mechanism? (a) Write a mechanism for the forward reaction, showing all elementary steps. (b) What intermediates (i.e, not reactants or products) are present in this mechanism? (e)...
ENED NERGY VS REACTION COORDINATE DIAGRAM MODEL T ction coordinate graph is used to show how the potential energy of the reactants become products. A reaction coordinate is a measure of the progress of the reac- An energy vs. reaction changes as they becom along the reaction pathway. Figure 1 Transition State Energy activation energy Reactants AG energy change at constant pressure Products Reaction Coordinate KEY QUESTIONS 1. Is the change in energy from reactants to products in Model 1...
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