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Byju's Answer
Standard XII
Chemistry
Coagulation
Calculate the...
Question
Calculate the
H
+
ion concentration of a
0.01
N
weak monobasic acid. The value of dissociation constant is
4.0
×
10
−
10
.
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Solution
H
A
⇌
H
+
+
A
−
According to ostwald's dilution law for weak monobasic acid
K
a
=
C
α
2
It is given that
K
a
=
4.0
×
10
−
10
,
C
=
0.01
So,
α
=
√
K
a
C
=
2
×
10
−
4
.
Concentration of Hydrogen ion =
C
α
=
2
×
10
−
6
m
o
l
/
l
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Calculate the
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