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Exam1-2010

Exam1-2010 - MCMP 205 Exam 1...

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Name _________________________________ Lab TA ________________________________ Lab Period (Day & Time) ___________________ Wednesday, February 10, 2010 8 - 9:30 pm WTHR 200 This exam contains 14 problems on 10 pages (numbered 1-10) in addition to the cover and scoring pages (i and ii). In addition there is a blank worksheet attached as the end page. Please write your name at the top of every page. MCMP 205 Exam 1
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Scoring page Question Possible points Score __________ __________ __________ __________ __________ __________ __________ __________ __________ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 8 8 2 2 4 4 12 12 6 6 8 12 6 10 Total Points __________ Name ______________________________ - ii - __________ __________ __________ __________ __________
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1. (8 pts) Complete the following drawings by adding the necessary double bonds, charges, and/or lone pair electrons so that each depicts an aromatic molecule. Then draw one additional resonance structure for each compound. O N 2. (8 pts) Draw the correct structure corresponding to each of the following names or descriptions. Name ______________________________ b. m -Nitroacetophenone - 1- c. Sodium 2,5-dichlorophenoxide ( obtained when NaOH is added to 2,5-dichlorophenol ) d. o -Benzoquinone H Hint: the aromatic molecule is neutral Hint: the aromatic molecule has a positive charge Hint: the aromatic molecule has a positive charge Hint: the aromatic molecule has two negative charges a. Benzyl radical N H O CH 2 O O 2 N ONa Cl O O Cl
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5. (4 pts) Draw a circle around the cation that is most stable and a square around the cation that is least stable.
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