FinalF04

FinalF04 - Chemistry 140A (C. L. Perrin) Final Exam...

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Chemistry 140A (C. L. Perrin) 1-2 Final Exam 3-4 December 10, 2004 5-6 Name (printed): _____________________________________________ 7-8 Signature (written): __________________________________________ 9-11 ID#: _______________ ( Place your picture ID in plain view, next to your exam .) 12-13 Major: ________________________ 14-15 Sector: Left Center Right 16-17 Row ____ (Last row = O at right or center, = P at left) 18 Course Grade Σ /1000 Σ /550 LEAVE AN EMPTY SEAT ON EACH SIDE, SO YOU ARE NOT NEXT TO ANYONE! Student on your left (even if separated by vacant seats) ______________________________ (Aisle ) Student on your right (even if separated by vacant seats) ______________________________ (Aisle ) Fill in the names and numbers above, and read the instructions below , but DO NOT TURN THE PAGE UNTIL YOU ARE TOLD TO DO SO. This is a long exam, and questions are arranged approximately in order of increasing difficulty. It is better to make sure you have correct answers than to rush to answer all of them. Check that you have all 7 pages. Each question is worth 30 points, except those marked with - are worth 20 and those with + are worth 40. Partial credit will be minimal, so read the questions carefully and weigh your answers critically. THINK BEFORE YOU WRITE; most answers require only a few well-chosen structures, and extraneous wrong answers may lose points. You need not show lone pairs, but be sure that structures satisfy the octet rule, if possible. Show connectivity unambiguously with Lewis/Kekule structures, "condensed" (CH n ) structures, or bond-line ("zigzag") drawings. Where stereoisomers are possible, show stereochemistry unambiguously, with chair cyclohexanes or with wedges and dotted lines, on carbons that look tetrahedral and in staggered conformations (no linear C- C-C, Fischer projections, or "bowties"). Unless absolute configuration is specified, a chiral reactant is racemic. If a product is racemic, you need not draw both enantiomers; instead you may draw one and write "racemic" or "plus mirror image" or "+MI". Write ONLY your answers on these pages, in the BOXES provided.
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FinalF04 - Chemistry 140A (C. L. Perrin) Final Exam...

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