Chemistry Reference
In-Depth Information
O
O
H
N
H
5
C
2
H
5
C
2
N
(-)
-H
+
O
O
H
H
H
11
C
5
H
11
C
5
O
O
O
(-)
H
5
C
2
N
O
H
H
11
C
5
O
O
H
5
C
2
N
O
(-)
N
H
H
11
C
5
O
O
N
(-)
H
5
C
2
O
H
H
11
C
5
O
Figure 1.9
Resonance forms of the pentobarbital anion.
x
—------
antilog(
0.6)
0.251
(100
x
)
x
0.251(100
x
)
x
25.1
0.251
x
25.1
x
—--
20.1
1.251
% Ionised at pH 7.4
20.1%
% Unionised at pH 7.4
79.9%
