Chemistry Reference
In-Depth Information
ANSWERS TO PROBLEMS
Problems Within the Chapter
11.1
a.
primary
b.
secondary
c.
primary
d.
tertiary
11.2
N,N
-dimethyl-3-pentanamine
11.3
a.
neopentylamine or 2,2-dimethylpropanamine
b.
3-aminopropanol
c.
p
-nitroaniline
11.4
a.
(CH
3
CH
2
CH
2
CH
2
)
2
NH
b.
c.
d.
11.5
Trimethylamine has no hydrogens on the nitrogen: (CH
3
)
3
N. Thus, intermolecular
hydrogen bonding is not possible. In contrast, intermolecular hydrogen bonding is
possible for CH
3
CH
2
CH
2
NH
2
and this raises its boiling point considerably above that
of its tertiary isomer.
NH
4
+
Br
_
11.6
a.
+2 NH
3
CH
3
CH
2
CH
2
CH
2
Br
CH
3
CH
2
CH
2
CH
2
NH
2
+
_
+
b.
CH
3
CH
2
I+2 (CH
3
CH
2
)
2
NH
(CH
3
CH
2
)
3
N+(CH
3
CH
2
)
2
NH
2
I
c.
_
(CH
3
)
4
N
+
I
(CH
3
)
3
N+ CH
3
I
d.
+
CH
2
CH
2
CH
3
Br
-
CH
2
Br
CH
2
NH
2
CH
3
CH
2
CH
2
NH
2
+
CH
3
CH
2
CH
2
NH
2
CH
2
NHCH
2
CH
2
CH
3
+
Br
-
CH
3
CH
2
CH
2
NH
3
+
11.7
+
-
NH
2
NHCH
2
CH
3
NH
3
Br
2
+CH
3
CH
2
Br
+
