Midterm2

Midterm2 - Chem 30C, Spring 2011 2nd Midterm Exam Prof....

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Chem 30C, Spring 2011 2 nd Midterm Exam Prof. Ohyun Kwon, UCLA Your Name (Please Print) Question Your points 1 (16 points) 2 (16 points) 3 (15 points) 4 (17 points) 5 (20 points) 6 (16 points) Total (100 points)
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PAGE 1 1. (a) (8 points) Give the number of pi electrons and determine whether each of the following compounds is aromatic, anti-aromatic, or non-aromatic. compound number of π electrons aromaticity N O N N N S (b) (8 points) Name the following molecules or draw a structure for a given name. SO 3 H HO MeO NH O 2,4,6-trinitrotoluene (TNT) [16]annulene
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PAGE 2 2. (a) (9 points) Draw the π molecular orbital (MO) energy diagram of pyrrole. Indicate in which MO’s the π electrons are located and predict the stability of pyrrole in a very short sentence. N H pyrrole (b) (7 points) Which of the following molecules is a stronger acid? Explain why. H H H H cyclopropene cyclopenta-1,3-diene
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PAGE 3 3. (15 points) Draw the structures of the expected products. (a)
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Midterm2 - Chem 30C, Spring 2011 2nd Midterm Exam Prof....

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