Practice Test 2

Practice Test 2 - Practice Exam 2 (9/9/09) 1. Predict the...

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Practice Exam 2 (9/9/09) 1. Predict the direction in which the reaction proceeds by placing a reaction arrow between the reactant and the product. Show the curved (mechanism) arrow for the reaction in the provided space. OH O + NaOH O O Na + H 2 O 2. In the following question, circle the stronger acid and account briefly for the strengths in acidity. When you explain, draw proper structures to compare with. CH 3 CO 2 H vs CF 3 CO 2 H O O H OH weak acid strong base weak base weak acid (neutral) O O F F F extra dipole moment Because of the extra inductive effect, trifluoroacetic acid is more acidic. 3. Circle the more acidic molecule. If there is any specific effect which influences the difference in their acidities, name it in the provided space. If there is no significant effect, say "None" in the provided space. OH O Which effect? OH O F F inductive effect
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F 3 C OH O + CH 3 NH 2 4. Complete the following acid-base reaction. Then, explain why the reaction takes place in the direction shown. Finally, describe the mechanism by showing appropriate curved arrows.
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This note was uploaded on 11/07/2009 for the course CHEM 322AL taught by Professor Jung during the Fall '07 term at USC.

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Practice Test 2 - Practice Exam 2 (9/9/09) 1. Predict the...

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