Take Home Quiz _4 KEY

Take Home Quiz _4 KEY - CHM 114 A/C Take-Home Quiz#4 KEY...

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CHM 114 A/C Take-Home Quiz #4 KEY 1. (2 pts) Consider a molecule with a trigonal pyramidal shape. This molecular shape is based on the tetrahedral electron-domain geometry. (a) How many nonbonding electron pairs should it have on the central atom? 1____ (b) What is the hybridization at the central atom? sp 3 ____ 2. (4 pts) Draw a Lewis structure for each of the following molecules/ions: ClO 3 , SO 3 , SCl 4 , C 2 H 4 , C 6 H 6 (benzene) Identify the molecule/ion that (multiple answers possible): (a) has bond angles that are slightly less than 109.5 ° . _______ClO 3 ______________ (b) has localized pi bonding. _______C 2 H 4______________ _ (c) has delocalized pi bonding. _______SO 3 and C 6 H 6_______________ (d) is a nonpolar molecule. ______ SO 3 , C 2 H 4, and C 6 H 6________________ 3. (1 pts) The property that molecular oxygen, O 2 , is paramagnetic is explained with molecular orbital (MO) theory. 4. (1 pt) Consider the following diagram representing the same micro-volume of helium gas before and after the piston is lowered so gas volume is reduced by a factor of 2. It is a closed system.
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This note was uploaded on 01/27/2010 for the course CHM 71476 taught by Professor Marks during the Spring '10 term at ASU.

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Take Home Quiz _4 KEY - CHM 114 A/C Take-Home Quiz#4 KEY...

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