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Tardigrade
Question
Chemistry
pKa of CH3COOH is 4.74. The pH of 0.01 M CH3COONa is
Q.
p
K
a
of
C
H
3
COO
H
is 4.74. The pH of 0.01 M
C
H
3
COON
a
is
7161
131
Equilibrium
Report Error
A
4.74
17%
B
8.37
60%
C
9.48
21%
D
None of these
2%
Solution:
C
H
3
COON
a
is a salt of a weak acid and strong base
∴
P
H
=
7
+
2
1
[
P
K
a
+
l
o
g
C
]
=
7
+
2
1
[
4.74
+
l
o
g
0.01
]
=
7
+
2
1
[
4.74
−
2
]
=
8.37