Electrons, Bonds And Molecular Properties Worksheet With Answer Key Page 6
ADVERTISEMENT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
156
CHAPTER 1
1.18.
2
2
3
2
2
1
2
2
2
2
2
5
a) 1s
2s
2p
b) 1s
2s
2p
c) 1s
2s
2p
d) 1s
2s
2p
1.19. The bond angles of an equilateral triangle are 60º, but each bond angle of
cyclopropane is supposed to be 109.5º. Therefore, each bond angle is severely
strained, causing an increase in energy. This form of strain, called ring strain, will
be discussed in Chapter 4. The ring strain associated with a three-membered ring
is greater than the ring strain of larger rings, because larger rings do not require
bond angles of 60º.
1.20
a) The C=O bond of formaldehyde is comprised of one sigma bond and one pi
bond.
2
b) Each C-H bond is formed from the interaction between an sp
hybridized
orbital from carbon and an s orbital from hydrogen.
2
2
c) The oxygen atom is sp
hybridized, so the lone pairs occupy sp
hybridized
orbitals.
1.21. Rotation of a single bond does not cause a reduction in the extent of orbital
overlap, because the orbital overlap occurs on the bond axis. In contrast, rotation
of a pi bond results in a reduction in the extent of orbital overlap, because the
orbital overlap is NOT on the bond axis.
1.22.
O
O
C
H
H
H
H
C
O
C
C
C
C
H
C
C
O
H
C
H
3
sp
H
2
All carbon atoms in this molecule are sp
hybridized,
except for the carbon atom highlighted above,
3
which is sp
hybridized
a)
H
H
H
H
C
H
H H
H
C
C
O
H
C
C
C
C
H
H
H
C
C
C
O
C
C
C
H
H
H H
H
H
3
The carbon atoms highlighted above are sp
hybridized.
2
All other carbon atoms in this compound are sp
hybridized
b)
ADVERTISEMENT
0 votes
Related Articles
Related forms
Related Categories
Parent category: Education