Final Exam Key - CHEMISTRY 30B UCLA SUMMER SESSION C 2006...

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Unformatted text preview: CHEMISTRY 30B UCLA SUMMER SESSION C 2006 FINAL EXAM KEY On my honor, I have neither given nor received any aid on this exam. KEY ____________________________ __________________________ Signature I. D. Number KEY _____________________________ Name (Print) Question Points -------------------------------------------------- 1 (36) -------------------------------------------------- 2 (10) -------------------------------------------------- 3 (10) -------------------------------------------------- 4 (10) -------------------------------------------------- 5 (18) -------------------------------------------------- 6 (18) -------------------------------------------------- 7 (20) -------------------------------------------------- 8 (20) -------------------------------------------------- 9 (8) -------------------------------------------------- 10A-H (30) -------------------------------------------------- 10I-M (12) -------------------------------------------------- 11 (18) -------------------------------------------------- Total (210) Chemistry 30B FINAL, Summer 2006 Name: KEY Page 2 THEORY 1. A. (5) Rank (1 most, 5 least) the following anions for stability. O O O O O O O 1 4 5 3 2 B. (8) What are the approximate pKas of the following compounds? Ammonia Acetic acid Acetone NH of Acetamide 36 5 20 16 Butane Ethanol 2,4-pentanedione Propyne 50 16 10 25 C. (5) Rank (1 most, 5 least) the following for reactivity with methyl magnesium bromide. O O O O N O Cl O O O O Na 3 5 4 1 2 D. (8) Label the following pairs of atoms or groups as Homotopic, Enantiotopic or Diastereotopic. Homotopic Diastereotopic Homotopic Enantiotopic Me Me OH OH O Me O Me Me Me H H E. (10) There are FOUR fundamental reactive intermediates in organic chemistry. Write their names and formulas and drawings of the most stable structures. Carbanion Radical Carbocation Carbene CH 3- CH 3 . CH 3 + : CH 2 H C H H H C H H H C H H C H H C H H OR Chemistry 30B FINAL, Summer 2006 Name: KEY Page 2 THEORY 1. A. (5) Rank (1 most, 5 least) the following anions for stability....
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Final Exam Key - CHEMISTRY 30B UCLA SUMMER SESSION C 2006...

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