Exam 2 1997

Exam 2 1997 - Name: CHEMISTRY 3311, Fall 1997 Professor...

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Name: -1- CHEMISTRY 3311, Fall 1997 Professor Walba Second Hour Exam October 25th, 1997 scores: 1) 2) 3) 4) 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 This is a closed-book "open model" exam. You may use models, but no notes or books. Please put all your answers on the test. Use the backs of the pages for scratch. There are additional scratch sheets at the end of the exam.
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Name: -2- 1) (25 pts) a) Label each tetrahedral stereogenic center in the following structures using the CIP (R or S) system. Be careful to indicate which stereocenter goes with each descriptor. F O Br OH O H NH 2 F F HO b) Label each of the following pairs of structures as homomers, conformers, enantiomers, diastereomers or structural isomers. In our class, conformers are NOT enantiomers or diastereomers. This question relates to the description of chemical compounds at room temperature on a long time scale. For example, enantiomeric
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Exam 2 1997 - Name: CHEMISTRY 3311, Fall 1997 Professor...

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