Chem 110
Quiz #1
Name ___Key_______________________
July 5, 2013
1) Using VSEPR draw the structure of each of the following compounds. Do not include lone pairs
when naming the shape of the compound.
Molecule
Coord #
XeOCl4
Xe = 8
O=0
4 Cl = 4
12/2 = 6
P=5
4F=4
+ = -1
8/2 = 4
I=7
O=0
3F=3
10/2 = 5
C=4
O=0
2 Cl = 2
6/2 = 3
PF4+
IOF3
COCl2
Draw the
Overall Shape
O
F
F Xe F
F
Name the Shape
(ignoring e-‘s)
AXE Designation
Square
Pyramid
AX5E
Tetrahedral
AX4
See-Saw
AX4E
Trigonal Planar
AX3
F
P
F
F
F
O
F
I
F
F
O
C
Cl
Cl
2) Please draw the Lewis structure for C3H6O2,
H
H
H
C
C
H
H
O
C
O
3) What is the overall shape (geometry) around,
H
3
4
O
N
Atom 1 = Trigonal Planar
C
C
2
Cl
Atom 2 = Tetrahedral
H
C
C
C
H
C
C
C1
H
H
Atom 3 = Trigonal Planar
Atom 4 = Tetrahedral
H