Practice Exam Final Answers

Practice Exam Final Answers - 2008 J.M.J. Frchet, all...

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© 2008 J.M.J. Fréchet, all rights reserved Answers to Practice Final exam Page 2 of 15 1) 15 Points (a) Name the famous scientist largely responsible for the concept of “bonding and molecular orbitals” (b) What is the degree of unsaturation of C 9 NH 5 Cl 2 ? Answer: (c) Explain briefly why water is not usually effective in extinguishing a gasoline fire. (d) (e) What is the formal charge on each atom shown by an arrow? (f) What is the size of the M+1 peak relative to the size of the molecular ion (M+) peak for C 6 H 14. Write your answer as a % value Answer: Answer: Answer: How many C atoms are in the sp 2 hybridization state Answer: How many C atoms are in the sp 3 hybridization state O CH 3 O CN CCCC O CH 3 HH CNN H H Answer:
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Answers to Practice Final exam Page 3 of 15 2. 14 Points . Name (IUPAC nomenclature) or draw the following compounds, show stereochemistry where appropriate H OH CH 3 OH CH 2 CH 3 H OCH 3 F CH 3 CH 3 CH 2 CH 3 CH 2 Cl H 3 C OH H OH 3,3-dimethyl-5-hexyn-2-ol (Z)-4-fluoro-2-iodo-2-pentene (S)-1-ethyloxacyclopropane
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Answers to Practice Final exam Page 4 of 15 3. 15 Points. (a) Sketch a complete and fully labeled potential energy diagram for the formation of CH 3 Cl from methane and chlorine. You can assume that chlorine radicals are always available to start the reaction. (Make sure the diagram is fully legible, use all the space provided). (b) Write a detailed mechanism for the formation of ethene H 2 C=CH 2 by cracking of butane C 4 H 10 .
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Answers to Practice Final exam Page 5 of 15 4. 16 Points. Explain each of the following observations: (a) (S)-3-bromo-3-methylhexane reacts in aqueous acetone to afford racemic 3-methyl-3-hexanol.
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This note was uploaded on 10/25/2009 for the course CHEM 3A taught by Professor Fretchet during the Spring '08 term at University of California, Berkeley.

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Practice Exam Final Answers - 2008 J.M.J. Frchet, all...

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