Midterm2-Ternansky-Fall 05

Midterm2-Ternansky-Fall 05 - Chemistry 140A Fall, 2005...

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Chemistry 140A Fall, 2005 Second Midterm Exam-250 points 11/15/05 DO NOT OPEN THIS EXAM UNTIL INSTRUCTED TO DO SO. ....FILL OUT THE FOLLOWING INFORMATION NOW : . YOUR NAME (Print): . SIGNATURE: . ID checker initials: . If you wish to have any answers considered for a re-grade, your exam must be completed in INK ….also, no ALTERED answers will be considered for re-grade.
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1. (37 points) For the following molecules, assign “R” or “S” to each of the numbered atoms. If the atom is not chiral, write “NC” in the space. Next, indicate whether the molecule is chiral, achiral or meso by circling the appropriate designation. Note that meso is a special case of achiral and must be designated where appropriate. H H 3 C CH 3 CH 3 H CO 2 CH 3 O H CH 3 H H 3 C Br Br H H H O MeO Br H 3 C I Cl H Cl Me H O O H H 1 2 3 4 5 6 chiral achiral meso 1: 2: 3: 4: 5: 6: 1 2 3 4 5 6 1 2 3 4 5 1 2 3 4 5 chiral achiral meso 1: 2: 3: 4: 5: 6: chiral achiral meso 1: 2: 3: 4: 5: chiral achiral meso 1: 2: 3: 4: 5: 1 2 3 4 chiral achiral meso 1: 2: 3: 4: 1 2 3 4 5 chiral achiral meso 1: 2: 3:
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This note was uploaded on 10/30/2008 for the course CHEM 140A taught by Professor Whiteshell during the Spring '04 term at UCSD.

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Midterm2-Ternansky-Fall 05 - Chemistry 140A Fall, 2005...

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