Final_Key_M10

Final_Key_M10 - CHEM 109A Russak M 10 Final Key Question 1...

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CHEM 109A Russak M 10 Final Key Question 1 ______/2 Question 2 ______/9 Question 3 ______/6 Question 4 ______/24 Question 5 ______/6 Question 6 ______/4 Question 7 ______/6 Question 8 ______/9 Question 9 ______/8 Question 10 ______/12 Question 11 ______/15 Total ______/100 Name____________________ Perm #___________
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Circle the alkyl halide that undergoes the slowest SN2 reaction: (2) 2. Give the product(s) of the following substitution reactions to include stereochemistry. (9) 3. a. In the substitution reaction of methyl bromide with hydroxide ion, the rate of the reaction is accelerated upon the use of DMSO as a solvent as opposed to ethanol. Explain why. (3) DMSO is a more polar solvent which will stabilize the transition state. Also, it is polar aprotic…so it won’t deactivate the charged nucleophile. b. In an SN2 reaction, what effect would doubling the concentration of the nucleophile have on the rate of the reaction? What about an SN1? Use rate expressions to support your claim. (3)
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Final_Key_M10 - CHEM 109A Russak M 10 Final Key Question 1...

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