Practice Exam #1-Fall04

Practice Exam #1-Fall04 - Cornell University Chemistry 357...

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Cornell University Chemistry 357 Fall 2004 Examination I September 23, 2004 Instructions: Read all questions completely before answering. To be fair to all students, the proctors have been instructed to not answer any questions about the exam. You may find it helpful to first answer those questions that you find easier and then return to those you find more difficult. Good Luck!!! Possible Problem Score 100 1 10 3 15 4 5 6 7 15 12 5 15 2 5 8 9 9 9 TOTAL 10 5 Name:_____________________________________________ Signature:__________________________________________
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Page 1 of 9 1) (10) Provide IUPAC names for each of the following compounds. Write your answer on the line next to each compound. Be sure to include any appropriate stereochemical designations. a) H 3 CH 2 CH 2 CH 2 C CH 2 CH 2 CH 3 CH 3 CH 2 CH 2 CH 3 H 3 C H 3 CH 2 C b) H H 3 CH 2 C CH 3 CH 3 H 3 C CH 2 CH 3 c) d) e)
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Page 2 of 9 2) ( 5) The compound Taxol, shown below, is a drug that has been shown to be effective in the treatment of several forms of aggressive cancer. C learly circle any atom in the molecule that you believe to be a stereocenter. Ambiguous answers will be graded as wrong answers, so be sure your circles clearly refer to a single atom . O N OH O O H 3 C O O O H 3 C CH 3 CH 3 HO O O OH O O O CH 3 H TAXOL H H H H H CH 3
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Page 3 of 9 3) (15) In the structures below, each compound contains 2 sp 2 hybridized atoms. There are also several atoms (or lone pairs) in each structure, indicated by an arrow. Do the indicated atoms (or lone pairs) in each structure have to lie in the same plane as the sp 2 atoms in the structure (
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This note was uploaded on 03/31/2008 for the course CHEM 3570 taught by Professor Ganem, b during the Fall '06 term at Cornell.

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Practice Exam #1-Fall04 - Cornell University Chemistry 357...

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