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HT2-2005 - Hour Examination#2 Chemistry 301X 2005...

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Unformatted text preview: Hour Examination #2, Chemistry 301X - 2005, November 21, 2005, 7:30-10:00 pm “As you get older, you start to give yourself permission to make a mistake. Whether you make it or not, you’ve got to reach. Interesting things can develop through that process.” Kenny Barron 1a (8 points). Use Energy vs. Reaction Progress diagrams to explain (briefly!) why the rates of the E1 and S N 1 reactions of isopropyl iodide are identical, but the rates of the E2 and S N 2 reactions of isopropyl iodide are very different. What is an “energy vs. Reaction Progress” diagram? See below: Reaction Progress E n e r g y Curve b (8 points). Explain very briefly why compound X can not undergo any of the following reactions: E1, E2, S N 1, S N 2. A (correct) short phrase will suffice for each part. I X 2 (21 points). Reaction of the enantiomerically pure iodide 1 (C 8 H 9 I) with one molar equivalent of thiolate (HS – ) ion in CH 2 Cl 2 , a slightly polar solvent, leads to enantiomerically pure 2 , C 8 H 10 S....
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HT2-2005 - Hour Examination#2 Chemistry 301X 2005...

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