2008Test1Key - Name: _ Class Number Key Midterm I, Spring...

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page 1 of 8 Name: _____________________________________ Class Number Midterm I, Spring 2008 Chemistry 2210 Professor S. A. Miller, February 6, 2008 Key
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page 2 of 8 for n -butane: Problem Number Possible Score Your Score 1 72 2 24 3 27 4 15 5 12 Total 150 Last Name: _________________ First Name: _______________ Signature: ___________________________________________
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1. (72 pts.; 6 pts. each) Draw the following. CHM 2210 Midterm I page 3 of 8 (a) A Lewis structure for CH 3 NCO. (Lines are OK for bonds, but use dots for lone pairs.) C H H H N C O (b) Two other important resonance forms of the following organic anion. (c) The conjugate base of PhCH 2 COOH. (Draw the complete line angle formula.) (d) The pi bonding molecular orbital (made up of atomic orbitals) for acetone, CH 3 COCH 3 . O Wade 1-25h O O O O Wade 1-37h Wade 1-44 H 3 C H 3 C O C Wade 2-31a
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1. (continued) CHM 2210 Midterm I page 4 of 8 (e) A line angle structure of 2-pentyne (CH 3 CCCH 2 CH 3 ) that fully depicts its three-dimensional structure, using dashed lines and wedges where necessary. Be sure to depict all carbons and hydrogens. (f) A line angle structure of acetonitrile (CH 3 CN) AND its molecular dipole. (g) A hydrogen bonding interaction between two molecules of 1-butanol. (h) The only possible stereoisomer of trans -1,4-dimethylcyclohexane, drawn in the chair conformation.
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This note was uploaded on 04/29/2008 for the course CHM 2210 taught by Professor Reynolds during the Spring '01 term at University of Florida.

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2008Test1Key - Name: _ Class Number Key Midterm I, Spring...

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