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Byju's Answer
Standard XII
Biology
Effect of pH on Enzymes
Calculate pH ...
Question
Calculate pH of 0.1 M solution of NH4Cl. The dissociation cons†an t (Kb) of NH3 is 1.8 × 10–5
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Similar questions
Q.
Calculate the
K
h
and pH of 0.05N
N
H
4
C
l
solution where
K
b
=
1.8
×
10
−
5
Q.
To a solution of
0.1
M
M
g
2
+
and
0.8
M
N
H
4
C
l
, an equal volume of
N
H
3
is added which just gives precipitate. Calculate
[
N
H
3
]
in solution.
K
s
p
of
M
g
(
O
H
)
2
=
1.4
×
10
−
11
and
K
b
of
N
H
4
O
H
=
1.8
×
10
−
5
Q.
Calculate the pH of a buffer prepared by mixing
300
cc of
0.3
M
N
H
3
and
500
cc of
0.5
M
N
H
4
C
l
.
K
b
for
N
H
3
=
1.8
×
10
−
5
Q.
At
25
o
C
, the value of
p
K
b
(
K
b
being the dissociation constant at a base) for
N
H
3
in aqueous solution is
4.7
. What is the pH of
0.1
M
aqueous solution of
N
H
4
C
l
with
0.01
M
N
H
3
(approximately)?
Q.
Grams of nh4cl should be dissolved per litre of solution to have a pH of 4.96 KB for KB for NH 3 is 1.8 into 10 raise to the power minus 5
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