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Byju's Answer
Standard XII
Chemistry
Basic Buffer Action
NH 4 OH is ti...
Question
N
H
4
O
H
is titrated with
H
C
l
solution. Find the value of
log
(
[
N
H
+
4
]
[
N
H
4
O
H
]
)
when the volume of
H
C
l
added is half of that of equivalence point.
A
0.0
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B
0.5
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C
0.75
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D
1
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Solution
The correct option is
A
0.0
N
H
4
O
H
(
a
q
)
+
H
C
l
(
a
q
)
→
N
H
4
C
l
(
a
q
)
+
H
2
O
(
l
)
At half equivalence point,
p
O
H
=
p
K
b
Since for basic buffer ,
p
O
H
=
p
K
b
+
l
o
g
(
[
N
H
+
4
]
[
N
H
4
O
H
]
)
When
p
O
H
=
p
K
b
l
o
g
(
[
N
H
+
4
]
[
N
H
4
O
H
]
)
=
0
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1
Similar questions
Q.
N
H
4
O
H
is titrated with
H
C
l
solution. Find the value of
log
(
[
N
H
+
4
]
[
N
H
4
O
H
]
)
when the volume of
H
C
l
added is half of that of equivalence point.
Q.
C
H
3
C
O
O
H
is titrated with
N
a
O
H
solution. Find the ratio
(
[
C
H
3
C
O
O
N
a
]
[
C
H
3
C
O
O
H
]
)
when the volume of
N
a
O
H
added is half that of equivalence point.
Q.
When
50
m
L
of
0.1
M
N
H
4
O
H
is added to
50
m
L
of
0.05
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H
C
l
solution, the pH is:
Q.
C
H
3
C
O
O
H
is titrated with
N
a
O
H
solution. Find the ratio
(
[
C
H
3
C
O
O
N
a
]
[
C
H
3
C
O
O
H
]
)
when the volume of
N
a
O
H
added is half that of equivalence point.
Q.
Which of the following represents a correct relation for a basic buffer formed by
N
H
4
O
H
and
N
H
4
C
l
?
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Basic Buffer Action
Standard XII Chemistry
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