second_hour_exam_20081020_answer_key

second_hour_exam_20081020_answer_key - Name:...

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Name: CHEM151L.003-F2008 EXAM 2 October 20, 2008 Name : Answer Key L A S T F I R S T Duke Unique ID No : This exam consists of 12 pages including Appendices at the end . a. Appendix A. Periodic Table b. Appendix B. Collection of Equations, Constants, and Definitions c. Appendix C. Selected Cyclohexane A Values (kcal/mol) Please put your name at the tops of pages 2–10 . Ambiguous answers will get no credit. Initial of Last Name Your signature below indicates that you have taken this examination in accord with the Duke Community Standard. Signature : I will not lie, cheat, or steal in my academic endeavors. I will conduct myself honorably in all my endeavors. I will act if the Standard is compromised. 1
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Name: Problem 1 (12 pt) Assign an ( R ) or ( S ) absolute configuration to each asymmetric carbon atom (*) in each of the following molecules. a. b. Problem 2 (14 pt) Indicate whether the structures in each of the following pairs are enantiomers ( E ), diastereomers ( D ), identical molecules ( I ), or none of the above ( N ). a. b. Problem 3 (12 pt) Label each molecule as chiral ( C ) or achiral ( AC ). Circle any meso compounds. a. b. 2
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Name: Problem 4 (7 pt) How many asymmetric centers does subglutinol A (an immunosuppressive natural product) have? Problem 5 (12 pt)
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second_hour_exam_20081020_answer_key - Name:...

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