310MFa07Exam2Key

# 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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