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Exam 2 1994 - CHEMISTRY 3311 Fall 1994 Professor Walba...

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_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ -1- CHEMISTRY 3311, Fall 1994 Name Professor Walba Second Hour Exam November 3, 1994 scores: 1) 2) This is a closed-book "open model" exam. You may use models, but no notes 3) or books. Please put all your answers on the test. Use the backs of the pages 4) for scratch. There are additional scratch sheets at the end of the exam. _____________________ PLEASE read the questions carefully! H 1 He 2 Li 3 Be 4 B 5 C 6 N 7 O 8 F 9 Ne 10 1A 2A 3A 4A 5A 6A 7A 8A Partial Periodic Table Na 11 Mg 12 Al 13 Si 14 P 15 S 16 Cl 17 Ar 18 Br 35 I 53
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_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ -2- 1) (25 pts) a) Label each stereocenter in the following structures using the CIP (R or S) system. Be careful to indicate which stereocenter goes with each descriptor. OH Br Cl O CH 3 CH 3 I H H I O OH Br Br Br b) Label each of the following pairs of compounds as homomers, enantiomers, diastereomers, or constitutional isomers. Also, indicate whether each compound is chiral or achiral using the check boxes. Achiral Chiral Chiral Achiral Chiral Achiral Achiral Chiral Chiral Achiral Achiral Chiral Chiral Achiral Achiral Chiral CH 3
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