Chem 161 Chapter 9 Molecular Geometry Worksheet - Shape Determines Function Page 2
ADVERTISEMENT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40Molecule #2:
borane, BH
3
a. Draw the Lewis structure below.
b. 3D shape showing approximate bond angles
Lewis structure
B
c. Note that the three outer atoms make a triangle and all four atoms are in the
same plane, so this shape is called trigonal planar, where the bond angles are ________.
Molecule #3:
methane, CH
4
a. Draw the Lewis structure below.
b. 3D shape showing bond angles are 109.5˚.
Lewis structure
C
Thus, this shape is called tetrahedral,
in which the bond angles are 109.5˚.
Note: In tetrahedral, connecting the four outer atoms make four sides or faces.
(In Greek: “tetra” = four, “hedra” = face.)
CHEM
1 61:
C hapter
9
page
2
o f
4 0
ADVERTISEMENT
0 votes
Related Articles
Related forms
Related Categories
Parent category: Education