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Tardigrade
Question
Chemistry
How many mole of HCN will be required to prepare one litre buffer solution of pH =10.4 using 0.01 mol NaCN ? (Given .Ka ( HCN )=4 × 10-10)
Q. How many mole of
H
CN
will be required to prepare one litre buffer solution of
p
H
=
10.4
using
0.01
mol
N
a
CN
? (Given
K
a
(
H
CN
)
=
4
×
1
0
−
10
)
2744
204
Equilibrium
Report Error
A
2
×
1
0
−
2
m
o
l
B
1
×
1
0
−
3
m
o
l
C
4
×
1
0
−
4
m
o
l
D
9
×
1
0
−
3
m
o
l
Solution:
p
H
=
p
k
a
+
lo
g
(
A
c
i
d
S
a
lt
)
10.4
=
9.4
+
lo
g
(
x
0.01
)
1
=
lo
g
x
0.01
;
10
=
x
0.01
x
=
0.001
=
1
0
−
3