Practice_Quiz_2

Practice_Quiz_2 - CH 3 CHCH 3 CH 3 CCH 3 OH O...

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Chemistry 322aL Practice Quiz 2 (1) For each compound below, draw the three-dimensional structure predicted by VSEPR theory and show the direction of any molecular dipole moment. HCCl 3 trichloromethane H 2 C=CF 2 1,1-difluoroethene H 2 C=O formaldehyde answers C H Cl Cl Cl C C H H F F C O H H
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(2) Provide the simple alkyl group names of the following compounds. CH 3 CHClCH 3 CH 3 CH 2 OH CH 3 CH 2 CH 2 OCH 3 (CH 3 ) 2 NCH 2 CH 3 isopropyl chloride ethyl alcohol methyl propyl ether ethyldimethylamine (3) Identify the functional group in the following carbonyl compounds. CH 3 CH 2 COH O (CH 3 ) 2 CHOCCH 3 O C 6 H 5 CH O CH 3 CH 2 CN(CH 3 ) 2 O carboxylic acid ester aldehyde amide
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dipole-dipole hydrogen bonding dipole-dipole (4) In each pair of compounds below, circle the one with the higher boiling point and indicate the intermolecular attractive force responsible for the difference. CH 3 CH 2 CH 2 CH 3 CH 3 CH 2 CH 2 F __________________
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Unformatted text preview: CH 3 CHCH 3 CH 3 CCH 3 OH O __________________ CH 3 CH 2 CH CH 3 CH 2 CH 2 CH 3 O __________________ (5) Which of the following simple compounds will not absorb infrared radiation? NH 3 H 2 H 2 O HCl CCl 4 N 2 (6) Which of the following variables in recording an infrared spectrum will lead to stronger absorption by the sample? A higher concentration of the sample in a solvent. A sample cell with a larger cross section for the "windows." A cell with a longer path length. According to Beer's law: A = Log (I o /I) = a x b x c, where a is a constant describing the intrinsic absorptivity at a specific wavelength, b is the path length of the cell, and c is the concentration (or density) of the sample....
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This note was uploaded on 07/22/2009 for the course CHEM 322AL taught by Professor Jung during the Summer '07 term at USC.

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Practice_Quiz_2 - CH 3 CHCH 3 CH 3 CCH 3 OH O...

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