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Byju's Answer
Standard XII
Chemistry
pH the Power of H
Grams of nh4c...
Question
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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Solution
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Similar questions
Q.
How many grams of ammonium chloride should be dissolved in 500 mL of water to have a solution of pH 4.5?
[
K
b
for ammonium hydroxide is
1.8
×
10
−
5
]
Q.
What is the
p
H
(nearest integer) of a solution made by dissolving
0.05
litre
N
H
3
gas at
N
T
P
and
0.27
g
N
H
4
C
l
in
50
m
L
solution?
K
b
for
N
H
4
O
H
=
1.8
×
10
−
5
.
Q.
Calculate the change in pH of one litre buffer solution containing
0.10
m
o
l
e
each of
N
H
3
and
N
H
4
C
l
upon addition of (i)
0.02
mole of dissolved gaseous
H
C
l
, (ii)
0.02
m
o
l
e
of dissolved
N
a
O
H
. Assume no change in volume
K
b
for
N
H
3
=
1.8
×
10
−
5
)
Q.
Calculate the mass of
N
H
4
C
l
dissolved in
500
m
l
to have
p
H
=
4.5
. (
K
b
of
N
H
4
O
H
=
1.8
×
10
−
5
)
Q.
Calculate amount of
N
H
4
C
l
required to be dissolved in
500
m
L
water to have
p
H
=
5.
[
K
b
N
H
4
O
H
=
1.8
×
10
−
5
]
.
(Molar mass of
N
H
4
C
l
=
53.5
g
m
o
l
−
1
)
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