Final-AF05 - Name Student ID (Last name, First name) Chem...

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Student ID (Last name, First name) Chem 320A, LOPEZ Final (150pts) 13, Dec. 2005 1. In addition to the resonance structure below, draw two more resonance contributing structures (6 pts) H 2 CC O 2. Please answer the following questions about the following molecule. (12 pts) C H N O Cl H 2 N A B C O O CH a. What is the total number of pi bonds in this molecule? b. What is the bond angle around atom A? c. What is the geometry around atom B? d. What is the hybridization of atom C? e. Identify all functional groups. f. What is the total number of tertiary carbons? 3. Using Newman projections draw the Anti and Gauche conformations of 2-methylpentane with the number 3 carbon as the “front” carbon and the number 4 carbon as the “back” carbon and please label each structure and circle the most stable. (6 pts) 4. Please draw the two chair conformations for cis-1-ethyl-3-methylcyclohexane and circle the most stable; briefly explain your choice. (6 pts) 5. Consider the following three compounds. Please circle the one having the highest boiling point and briefly explain your choice. (3 pts)
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Final-AF05 - Name Student ID (Last name, First name) Chem...

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