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Ionic Equilibrium I
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Ionisation of weak acids and bases, Ostwald dilution law
NEET level
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Difficulty 1 of 3
ie010
The pH of a
0.01
M
solution of a weak monobasic acid with
K
a
=
1
×
1
0
−
6
is (use
[
H
X
+
]
=
K
a
c
)
A
6
B
4
C
2
D
3
Answer: B
[
H
X
+
]
=
1
0
−
6
×
1
0
−
2
=
1
0
−
4
M
, so
pH
=
4
.
Practice Ionic Equilibrium I
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