In Class Practice Exam 1 Key

In Class Practice Exam 1 Key - CH 2210 Fall 2002 Exam 1 A...

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CH 2210, Fall 2002 Name:__________________ Exam 1 A KEY SS#____________________ 1.) (8 pts) Give the IUPAC name for the following compound: 4- tert -butyl-3-ethyl-2,7-dimethylnonane or 3-ethyl-2,7-dimethyl-4-(1,1-dimethylethyl)nonane 2) (5 pts) Draw cis -1-(2,3-dimethylbutyl)-4-ethylcyclohexane in its most stable conformation: H H 3.) (10 pts) Draw a complete Lewis structure for the following molecule. Circle and label all functional groups. ClCOCH 2 CHCHCH 2 OH Cl C O C H H C C H H acid chloride alkene C O H H H alcohol
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4.) (15 pts) Draw the three most stable resonance forms of the compound given below: HN O N O H N O H N O H 5.) (9 pts) Draw line formulas for all three stereoisomers of the following molecule: CH 3 CHCHCHCHCH 3 6.) (10 pts) Given the bond dissociation energies below, calculate the overall enthalpy change for the following reaction. (CH 3 ) 3 CH + Br 2 (CH 3 ) 3 CBr + HBr Br-Br +46 kcal/mol (CH 3 ) 3 C-H +91 kcal/mol H-Br +88 kcal/mol (CH 3 ) 3 C-Br +65 kcal/mol -(65+88)+(46+91)= -16kcal/mol Answer: -16 kcal/mol
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This test prep was uploaded on 04/09/2008 for the course CHM 2210 taught by Professor Reynolds during the Spring '01 term at University of Florida.

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In Class Practice Exam 1 Key - CH 2210 Fall 2002 Exam 1 A...

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