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Unformatted text preview: Chemistry 140A TOTAL POSSIBLE: 250 Fall, 2009 POINTS MISSED: - Second Midterm Exam-250 points 11/19/09 TOTAL: 250 DO NOT OPEN THIS EXAM UNTIL INSTRUCTED TO DO SO.....FILL OUT THE FOLLOWING INFORMATION NOW : . LAST NAME (Print): KEY FIRST NAME (Print): Ima PID: __________________________________________________ SIGNATURE: __________________________________________ ID checker initials: ____________________ If you wish to have any answers considered for a re-grade, your exam must be completed in INK . 1. (65 points) For each compound shown, write the chiral designation (R or S) for the labeled carbon. If the indicated carbon is not a chiral center, write “NC” (not chiral) in the space provided. If the atoms are not numbered on the molecule shown, you are to use IUPAC numbering to identify the chiral centers. Br Br Cl 2 3 4 2: R 3: NC 4: R Cl CH 3 H H 3 C Br H H OH HO H CH 2 OH HO H O H 2 3 4 H Cl Cl H H Cl 1 2 3 4 O H 1 2 3 Compound A: Compound B: Compound C: Compound D: Compound E: Compound F: Cl H Br H 2 3 2: R 3: S 4: S 2: S 3: S 1: S 2: R 3: R 2: R 3: S 1: R 2: R 3: S 4: R 2 p t s e a c h ; 3 4 p t s t h i s p a g e CH...
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