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Name
Ch 1a, Problem Set Six
Section
Side 1 of 1
Due Friday, Nov. 5, 2004
Rec TA
at 4 PM in the SAC
Problems one and four are designated (
) as “no collaboration” problems.
Recall that from now on, problem sets are worth 200 points,
and you may not substitute your Quiz One score for these sets.
1.
(60 Points, 10 Each) For each of the following molecules, draw a Lewis dot structure and
state its geometry using VSEPR. Show any significant resonance structures and formal
charges.
a.
CO
2
b.
PF
5
c.
CO
d.
PH
3
e.
HCP
f.
IF
3
2.
(40 Points, 8 Each) For each of the following molecules, draw a Lewis dot structure and
then state its geometry using VSEPR. Show any significant resonance structures and
formal charges.
a.
BrF
5
b.
N
2
O
c.
CH
3
CCH
d.
H
2
NBH
2
e.
SF
2
O
3.
(40 Points, 10 each) When drawing Lewis dot structures, many students encounter the
pitfall of thinking in only two dimensions, even though molecules exist in three
dimensions. Several phosphorus compounds show interesting architectures for which
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 Fall '08
 Lewis

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