CHEM Ch2 Problem Set

CHEM Ch2 Problem Set - ° C): 106, 116, 126, 151. A B C D 2...

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1 CHEMISTRY 241 PROBLEMS CHAPTER 2 1. Provide line angle formulas for all stereoisomers of the following compounds: a. CH 3 CH=CHCH 2 CH 2 CH=CHCH 3 b. H 2 C=CHCH=CHCH 2 CH 2 C CCH 3 2. For each of the following, (a) provide a full Lewis structure, (b) indicate the hybridization of each atom (except hydrogen), (c) specify what atomic orbitals overlap to give each bond, (d) indicate what atomic orbital each lone pair occupies, and finally (e) provide a perspective drawing showing the geometry of the molecule (you don’t need to show the geometry of the methyl groups; they are understood to be tetrahedral). a. H 2 C=C=CH 2 b. (CH 3 ) 3 B c. H 2 C=NH d. (CH 3 ) 3 C + e. HC C - f. CH 3 CN g. HN=C=O h. CH 3 BH 3 - i. (CH 3 ) 3 O + j. H 2 C=CH - 3. Indicate which of the following compounds would exhibit a dipole moment of zero. a. CF 4 b. CH 2 F 2 c. cis -C 2 H 2 Cl 2 d. trans - C 2 H 2 Cl 2 4. Match the alkanes shown below with the following boiling points (
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Unformatted text preview: ° C): 106, 116, 126, 151. A B C D 2 5. For each of the following compounds, (i) indicate which can serve as a hydrogen bond donor to water and provide a drawing of the hydrogen bonded complex with the hydrogen bond indicated by a dashed line and (ii) indicate which can serve as a hydrogen bond acceptor from water and likewise provide a drawing of the complex. a. b. c. d. O NH 2 O N O CH 3 e. f. g. h. OH O OH O NHCH 3 6. Of the four compounds shown below, two of them are virtually insoluble in water, one is soluble to a slight extent, and one is completely soluble. Indicate which compound or compounds fit each description. CH 3 CH 2 OCH 3 CH 3 CH 2 CH 2 OH CH 3 CH 2 CH 2 CH 3 CH 3 CH 2 Cl A B C D 7. Arrange the following compounds in order of increasing boiling point. Explain your reasoning. OH A B C Cl...
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This note was uploaded on 06/02/2010 for the course CHEM 241 taught by Professor Molander during the Summer '08 term at UPenn.

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CHEM Ch2 Problem Set - ° C): 106, 116, 126, 151. A B C D 2...

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