NAME __________________________________ YOUR # ____________________ CHE230 2005 spring EXAM ONE page 1/4 1. Count the 13C NMR signals in the following molecules. a. (5 pts.) __________ b. (5 pts.) OOClClClCl __________ 2. Name the following molecules, pay attention to stereochemistry when needed. a. (5 pts.) Cl _____________________________________ b. (5 pts.) FFFF ___________________________________ 3. Draw the best Lewis Structure for the following molecules. a. (5 pts.) BCl3 b. (10 pts.) OCNCH(CH3)2NAME __________________________________ YOUR # ____________________ CHE230 2005 spring EXAM ONE page 2/4 4. (15 pts.) Draw and name all the isomers of C3H6Cl2. 4NAME __________________________________ YOUR # ____________________ CHE230 2005 spring EXAM ONE page 3/4 5. (20 pts.) How many pure p orbitals (not hybridized) are there in the following molecules? Add all the pure p orbitals on each atom in the molecule and tell me how many there are. a. NNN __________ b. NBNBNBHHH __________ c. __________ d. OOOH __________ 6. (10 pts.) Draw out the molecular orbitals of acetate. OO Distribute these vertically with the lowest energy orbitals on the bottom.NAME __________________________________ YOUR # ____________________ CHE230 2005 spring EXAM ONE page 4/4 7. (10 pts.) Sighting down the bond indicated, draw the Newman projection of the most stable conformer. ClCl 8. (10 pts.) In the box below, d raw the structure of the intermediate of the following reaction. The intermediate involves the pi bond reacting as a base.
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