Consider the energy diagram in the Figure below. Which one of the following statements is *not* correct? reagents oducts Progress of the reaction A. The energy diagram represents information for a mechanism with three elementary steps. B. The energy diagram shows that the first elementary step is the slowest. O C. The energy diagram represents an exothermic reaction. D. The energy diagram shows that the reaction has three transition states and two reactive intermediates. Energy

Consider the energy diagram in the Figure below. Which one of the following statements is not correct? reagents oducts Progress of the reaction A. The energy diagram represents information for a mechanism with three elementary steps. B. The energy diagram shows that the first elementary step is the slowest. O C. The energy diagram represents an exothermic reaction. D. The energy diagram shows that the reaction has three transition states and two reactive intermediates. Energy

Organic Chemistry

8th Edition

ISBN:9781305580350

Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Publisher:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Chapter10: Alcohols

Section10.7: The Pinacol Rearrangement

Problem EQ: Which step in the reaction would you expect to be rate-determining? 1. Vicinal diol to intermediate...

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Which step in the reaction would you expect to be rate-determining? 1. Vicinal diol to intermediate A. 2. Intermediate A to intermediate B. 3. Intermediate B to intermediate C. 4. Intermediate C to carbonyl product.
1. Answer the following questions on the reaction coordinate diagram pictured below. Reaction Progress a. Label AG on the diagram above. b. Label the reactants, products, transition state(s), and intermediate(s). c. How many steps would the mechanism of this reaction have?
17. The rate-determining step for a chemical reaction that proceeds by multiple mechanistic steps, is the step: a) with the highest energy transition state. b) with the largest activation energy. c) with a transition state that looks like the starting material for the mechanistic step. d) with a transition state that looks like the product for the mechanistic step.
Assume the reaction: CH3CH=CHCOONa + H2 + Ni ----> ??? a. Determine the correct rate law expression based on the elementary reaction. b. Draw the structure of the transition state. c. Draw the reaction coordinate diagrams for: the reaction with the catalyst and the reaction without the catalyst, but adjacent graphs. (Assume that the reaction is exothermic and has 1 transition state.) d. Does heat increase the rate of the forward reaction in the given? Why or why not?
3) Explain why the reactions below proceed at different rates and have different product OTS OTS KOtBu slow KOtBu fast and
Consider the following energy diagram. Energy Reaction coordinate a. How many steps are involved in this reaction? b. Label AH and E₂ for each step, and label AH overall- c. Label each transition state. d. Which point on the graph corresponds to a reactive intermediate? e. Which step is rate-determining? f. Is the overall reaction endothermic or exothermic?
Clearly label the energy diagram below when answering each part. If there is more than one specific type of label, give an appropriate number afterwards (i.e. Int. 1, Int. 2, etc). State how many step(s) are in the overall reaction, if more than one, clearly label where they start and end Identify the rate determining step (rds) Label all transition state(s) (TS) Label all intermediate(s) (Int.) Label all activation energy(ies) (Ea) Label the heat of the reaction (ΔH) State whether the overall reaction is endothermic or exothermic. please explaing each step. Thank you.
A reaction proceeds by the following mechanism: NO2Cl+Cl→NO2Cl2 NO2Cl2→NO2+Cl2 What is the overall reaction? a. NO2Cl+Cl→NO2+Cl2 b. NO2Cl+Cl+NO2Cl2→NO2+Cl2+NO2Cl2 c. NO2Cl+Cl+2NO2Cl2→NO2+Cl2 d. NO2Cl+Cl+NO2+Cl2→2NO2Cl2
Which of the following is the rate-limiting step of a reaction? A) the fastest step in the reaction mechanism B) the slowest step in a reaction mechanism C) the last step in the reaction mechanism D) none of the above
7. The following data were collected for the reaction: (CH;);CBr + OH- (CH),СОН + Вr- trial [(CH;) CBr] [OH] rate of reaction (mol L-' s-') 1 0.50 M 0.050 M 0.0056 1.00 M 0.050 M 0.011 3 1.00 M 0.10 M 0.011 4 1.50 M 0.050 M 0.017 Determine the form of the rate law and calculate k, the rate constant. You must include units with your answer! Feel free to use any space above to determine relative concentrations/rate, but it's not required.
I. The following mechanism has been proposed for the formation of N2 and H2O from H2 and nitrogen monoxide. Step 1 2 NO N2O2 (fast, equilibrium) This is reversible Step 2 N2O2 + H2 N2O + H2O (slow, RDS) This is not reversible Step 3 N2O + H2 N2 + H2O (fast) This is reversible a. What is the overall reaction for this mechanism? b. What are the intermediates if any are present? c. Write a rate law for each step of the mechanism and list the molecularity of each step. Be sure to include any reversible steps as well. d. What is the predicted rate law for this reaction? Be sure to show all your work to receive credit. e. What are the expected units for k if time was in units of seconds. II.The following reaction has a rate constant of 0.760s-1 at 1000. K and a rate constant of 0.870s-1 at 1030. K. What is the activation energy for this…
having issues with the mechanisms (org chem)