CHAPTER 10 HOMEWORK KEY

CHAPTER 10 HOMEWORK KEY - CHAPTER 10 HOMEWORK KEY 30....

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CHAPTER 10 HOMEWORK KEY 30. Identify the most important types of interparticle forces in the solids of each of the following substances. a. NH 4 Cl b. Teflon, CF 3 (CF 2 CF 2 ) n CF 3 c. Polyethylene, CH 3 (CH 2 CH 2 ) n CH 3 d. CHCl 3 e. NH 3 f. NO g. BF 3 34. Consider the following compounds and formulas. ethanol: CH 3 CH 2 OH; dimethyl ether: CH 3 OCH 3 ; propane: CH 3 CH 2 CH 3 The boiling points of these compounds are (in no particular order) -42.1 o C, -23 o C, and 78.5 o C. Match the boiling points to the correct compounds.
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36. In each of the following groups of substances, pick the one that has the given property. Justify each answer. a. highest boiling point: CCl 4 , CF 4 , CBr 4 b. lowest freezing point: LiF, F 2 , HCl c. smallest vapor pressure at 25 o C: CH 3 OCH 3 , CH 3 CH 2 OH, CH 3 CH 2 CH 3 d. greatest viscosity: H 2 S, HF, H 2 O 2 e. greatest heat of vaporization: H 2 CO, CH 3 CH 3 , CH 4 f. smallest enthaply of fusion: I 2 , CsBr, CaO 82. What pressure would have to be applied to steam at 350
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This note was uploaded on 07/22/2008 for the course CHEM 105A taught by Professor Bau during the Summer '04 term at USC.

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CHAPTER 10 HOMEWORK KEY - CHAPTER 10 HOMEWORK KEY 30....

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