Midterm II spring 2007

Midterm II spring 2007 - Version 1 (yellow) Chemistry 231,...

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Version 1 (yellow) Chemistry 231, Midterm II Instructor: Bergdahl Spring 2007 Name:_________________________________________________________ Be prepared to show ID upon request. **No cellular phones or calculators are allowed during the test** My laboratory instructor (TA) for Spring 2007 is (Please circle): Isabella Casey Gloria I don’t have a TA Before you start the exam, make sure that you have 15 problems!!
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Version 1 (yellow) My student I.D. (red I.D.) number is: A very Good Luck For graders only: Problem: #1_________/8p #2_________/4p #3_________/8p #4_________/4p #5_________/8p #6_________/6p #7_________/5p #8_________/5p #9_________/12p #10________/5p #11________/8p #12________/5p #13________/8p #14________/6p #15________/8p Total:________/100p
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Version 1 (yellow) Problem 1 . Determine and justify using pKa numbers if the following acid-base reactions are favored or disfavored. (8p) O Li OH A) B) C) D) + H + Li + H H H 2 O O H 3 O + + O K + Br O K Br + O + CH 3 Li O O Li + CH 4 Problem 2 . Rank the following acids in order of decreasing acidity (weakest acid as #1) in A) and in B) respectively. Consider the underlined “H” as the acidic proton. (4p) H H H A) B) H H H 3 CCCH H H H
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Version 1 (yellow) Problem 3 . Provide the IUPAC names for the following organic structures. (8p) H 3 CC H 3 H 3 C CH 3 CH 3 H 3 C CH 3 H 3 C CH 3 CH 3 CH 3 H 3 C CH 3 Br Br
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Midterm II spring 2007 - Version 1 (yellow) Chemistry 231,...

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