310MFa07Exam2Key - Bocknack CH 310M/318M Fall 2007 MIDTERM...

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How to read this table : In the first three columns, you’ll find the question number, the maximum points possible, and the correct answer choice. The columns labeled “A” through “J” indicate the points awarded for the problem if this letter was the choice indicated on the answer sheet. Please check the Blackboard gradebook to see how you answered the Part I questions, and to check your raw score (out of 158 points possible) for Part I of the exam. Part I answer sheets will not be returned, and no regrades are possible on Part I of the exam!!! Question Max. Points Correct A B C D E F G H I J 1 4 C 0 0 4 0 0 0 0 0 0 0 2 4 E 0 0 0 0 4 0 0 0 0 0 3 4 D 0 0 0 4 0 0 0 0 0 0 4 4 D 0 0 2 4 0 0 0 0 0 0 5 5 B 0 5 0 0 0 0 0 0 0 0 6 5 A 5 0 0 0 0 0 0 0 0 0 7 5 D 0 0 0 5 0 0 0 0 0 0 8 5 C 0 0 5 0 0 0 0 0 0 0 9 5 B 0 5 0 0 0 0 0 0 0 0 10 5 C 0 0 5 0 0 0 0 0 0 0 11 5 A 5 0 0 0 0 0 0 0 0 0 12 4 D 0 0 0 4 0 0 0 0 0 0 13 5 E 0 0 0 0 5 0 0 0 0 0 14 5 G 0 0 2 0 0 0 5 0 0 0 15 5 C 0 0 5 0 0 0 2 0 0 0 16 3 B +3 for A if Q13 = A or B or D or F +3 for B if Q13 = C or E or G or H or I or J 17 3 A +3 for A if Q14 = A or B of E or G or J +3 for B if Q14 = C or D or F or H or I 18 3 A +3 for A if Q15 = A or C or E or H or I or J +3 for B if Q15 = B or D or F or G 19 5 D 0 0 0 5 0 0 0 0 0 0 20 3 C +3 for C if Q19 = C or D ; +3 for D if Q19 = A or B 21 4 B 0 4 0 0 0 0 0 0 0 0 22 6 C 0 0 6 0 0 0 2 0 0 0 23 4 B 0 4 0 0 0 0 0 0 0 0 24 4 D 0 0 0 4 0 0 0 0 0 0 25 5 C 0 2 5 2 0 0 0 0 0 0 26 5 A 5 0 0 0 0 0 0 0 0 0 27 5 F +5 for F if Q26 = A ; +5 for A if Q26 = B or C ; +2 for C if Q26 = A 28 5 B +5 for A if Q26 = B or C +5 for A if Q26 = A and Q27 = C +5 for B if Q26 = A and Q27 = F No credit for other combinations, since the chemical equation would not represent an acid-base equilibrium! 29 5 D 0 0 2 5 0 0 0 0 0 0 30 3 C 0 0 3 0 0 0 0 0 0 0 31 5 B 1 5 0 0 0 0 0 0 0 0 32 3 E 0 0 0 0 3 0 0 0 0 0 33 5 E 0 0 0 0 5 1 0 0 0 0 34 3 A 3 0 0 0 0 0 0 0 0 0 35 5 F 0 0 0 2 0 5 0 0 0 0 36 4 F 0 0 0 0 0 4 0 0 0 0 Bocknack CH 310M/318M – Fall 200 7 MIDTERM EXAM #2 ANSWER KEY
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10 Part II – Write your answers to all questions on this page in the space provided. If you use a pen, only blue or black ink is acceptable!!! PLEASE READ EACH QUESTION VERY CAREFULLY !!! 37. ( 8 points) A “planar representation” of a substituted cyclohexane ring is given below. Complete the chair conformation by filling in the missing substituent groups. It is only necessary to show bonds to groups that are not hydrogen in your chair conformation. To help you get started, a reference carbon is marked with an asterisk in the “planar” representation. This reference carbon is also marked with an asterisk in the chair “skeleton” that is provided. You don’t need to draw the other chair conformation, but please indicate which statement is true about the relative stability of the chair
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This note was uploaded on 02/18/2010 for the course CHEMISTRY 310m taught by Professor Iverson during the Spring '08 term at University of Texas at Austin.

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310MFa07Exam2Key - Bocknack CH 310M/318M Fall 2007 MIDTERM...

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