Download Lewis Structures and Molecular Geometry for Various Compounds and more Study Guides, Projects, Research Geometry in PDF only on Docsity!
- For each of the following: a) find the number of valence electrons; b) draw the
Lewis Structure (include all resonance structures); c) calculate the formal charge
for each atom in each molecule and add it to the Lewis Structure; d) fill in the
remainder of the information requested in the table.
a) SO 2
O S O
-1 +
O S O
-1 +
O
S
O
18 e
b) SO 3
O
S O
26 e
O -
O
S O
O
O
S O
O
Name: sulfur dioxide Name: sulfur trioxide
Electron pair geometry: triangular
planar
Electron pair geometry:triangular planar
Molecular geometry: bent Molecular geometry: triangular planar
c) SO 3 -
O
S
O
26 e
O
S
O
O O
d) CO 3 -
O
C O
24 e
O -
O
C O
O
-1 - O
C O
O
-2 (^) -
Name: sulfite Name: carbonate
Electron pair geometry: tetrahedral Electron pair geometry: triangular
planar
Molecular geometry:triangular pyramidal Molecular geometry: triangular planar
e) IO 4 -^ f) NO 2
-1^ +
O N O
O N O
O
N
O
17 e
O I O
32 e
O
O
I
O
O
O
O
Name: iodate Name: nitrogen dioxide
Electron pair geometry: tetrahedral Electron pair geometry: triangular
planar
Molecular geometry: tetrahedral Molecular geometry: bent
g) HOCl h) I 3 -
I I I
22 e
H O Cl
Cl
O
H
14 e
Electron pair geometry: tetrahedral Electron pair geometry: triangular
bipyramidal
Molecular geometry: bent Molecular geometry: linear
i) PF 5 j) BeCl 2
Cl Be Cl
16 e
40 e- -
F P
F
F
F
F
Electron pair geometry: triangular
bipyramidal
Electron pair geometry: linear
Molecular geometry: triangular
bipyramidal
Molecular geometry: linear
- (^) 79) Br-Br = 228 pm / 2 = 114 pm radius Br
C-Br = 191 pm – 114 pm = 77 pm C C-C 77pm + 77pm = 154 pm radii or atoms are approximately the same in similar molecules
N (^) N
C N
C
C
C
N
C
N H
H
H
H H
changed the connectivity of the atoms
P
P P
P
20 e
O=O
O=C
O-H
O-O
O-Cl
double bond of O
single bond to O
larger atomic radius
smaller atomic radius
Chapter 9
Cl
S Cl
a) SCl (^2) ~104 o
b) ~180 o
H N C
O
N
H
c)
d)
H H
H C
H
H
O H
N N O
F Cl F
F Cl F
ClF 2
20e
ClF (^2)
tetrahedral < 109. 0
triangular bipyramidal
180
0
