2009-exam1-key - Chemistry 322a Exam No 1 Please Print Key...

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Chemistry 322a Exam No. 1 September 16, 2009 Please Print Last name First name First four digits of USC ID Name of TA (1) (8) Grader (2) (20) (3) (12) (4) (10) (5) (10) (6) (15) First letter of last name Total (125) (7) (34) (8) (16) Show your answers in the exam clearly. Any other comments or even scribbles may be subject to grading and consequent loss of points. Please note that there is a scratch paper for your use in the back. Detach and use it. Do not submit. Key
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1. Circle the more acidic molecule in each pair. The relavant H's are circled. (8 pts.) NH 2. Draw all the other reasonable resonance structures of the given molecule. If there is no possible resonance structure, say "None". Use the boxes given next to each molecule. Wrong structures will be subject to loss of points. (20 pts) Last name - Page 2 - OH (a) (b) NH 3 OH CH 3 O (c) (d) NH 2 CH 3 None F F Me H F F O None O O O O NH O NH
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Last name - Page 3 - 4. Draw the most stable conformation of 2-methyl-3-phenylbutane using a Newman projection.
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