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Byju's Answer
Standard XII
Chemistry
Basic Buffer Action
H2S(0.1M)+HCl...
Question
H2S(0.1M)+HCl(0.3M). Ka=1.2*10^-20 ,find ph
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Similar questions
Q.
Calculate the solubility of
A
g
C
N
in a buffer solution of
p
H
=
3
,
K
s
p
of
A
g
C
N
=
1.2
×
10
−
15
and
K
a
of
H
C
N
=
4.8
×
10
−
10
.
Q.
The solubility of
A
g
C
N
in a buffer solution of
p
H
=
3
is:
[Given
K
s
p
of
A
g
C
N
=
1.2
×
10
−
6
and
K
a
for
H
C
N
=
4.8
×
10
−
10
. Assume that no cyano complex is formed.]
Q.
K
s
p
of
C
d
S
=
8
×
10
−
27
,
K
s
p
of
Z
n
S
=
1
×
10
−
21
,
K
a
of
H
2
S
=
1
×
10
−
21
.
What
[
H
+
]
must be maintained in saturated
H
2
S
(
0.1
M
)
to precipitate
C
d
S
but not
Z
n
S
, if
[
C
d
2
+
]
=
[
Z
n
2
+
]
=
0.1
M
initially?
Q.
p
H
of
10
−
3
M
C
H
3
C
O
O
H
is:
K
a
=
2
×
10
−
5
Q.
Compare the acidic nature of
0.1
M
H
C
N
O
with that of
0.2
M
H
C
N
.
(Given
K
a
for
H
C
N
O
=
1.2
×
10
−
4
and
K
a
for
H
C
N
=
4.0
×
10
−
10
at
298
K
.
)
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