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Tardigrade
Question
Chemistry
Calculate dissociation constant for an acid textHA having [.H+]. equals to text0 text.1 textM (Given: degree of dissociation of textHA is text1 % )
Q. Calculate dissociation constant for an acid
HA
having
[
H
+
]
equals to
0
.1
M
(Given: degree of dissociation of
HA
is
1%
)
2239
204
NTA Abhyas
NTA Abhyas 2020
Equilibrium
Report Error
A
1
0
-8
5%
B
1
0
-6
26%
C
1
0
-3
39%
D
1
0
-7
30%
Solution:
k
a
=
1
−
α
α
2
C
,
α
is very small ;
∴
1
−
α
≈
1
Cα
=
0
.1
k
a
=
(Cα)α
=
0.01
×
0.1
=
1
0
−
3