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Byju's Answer
Standard XII
Chemistry
Stoichiometric Calculations
Calculate pH ...
Question
Calculate pH mixture of
(
400
m
l
,
1
200
M
H
2
S
O
4
)
+
(
400
m
l
,
1
100
M
HCl
)
+
(
200
m
l
of water
)
.
A
5
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B
4.2
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C
2.1
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D
3
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Solution
The correct option is
A
5
Given that
H
2
S
O
4
=
1
200
(
400
m
L
)
=
0.002
m
o
l
e
s
2
H
+
=
0.04
H
C
l
or
H
+
=
1
100
(
400
m
L
)
=
0.004
Total Volume
=
400
+
400
+
200
=
1000
m
l
=
1
L
H
+
concentration
=
0.008
m
o
l
e
s
1
L
p
H
=
−
log
(
0.008
)
≈
2.1
Hence, option C is correct.
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0
Similar questions
Q.
Calculate pH of mixture of
(
400
m
L
,
1
200
M
B
a
(
O
H
)
2
)
+
(
400
m
L
,
1
50
M
H
C
l
)
+
(
200
mL of water
)
l
o
g
2
=
0.3010
Q.
Calculate the pH of mixture of 800 mL of
1
100
M
C
a
(
O
H
)
2
, 800 mL of
1
40
M
H
N
O
3
and 400 mL of water.
Q.
Calculate the pH of a solution obtained by mixing
100
m
L
of an acid of
p
H
=
3
and
400
m
L
solution of
p
H
=
1
.
Q.
Consider the following statements
(a) The
p
H
of a mixture containing
400
m
L
of
0.1
M
H
2
S
O
4
and
400
m
L
of
0.1
M
N
a
O
H
will be approximately
1.3
(b) Ionic product of water is temperature dependent.
(c) A monobasic acid with
K
a
=
10
−
5
has a
p
H
=
5
. The degree of dissociation of this acid is
50
%
.
(d) The Le Chatelier's principle is not applicable to common-ion effect.
The correct statement are :
Q.
Calculate pH of mixture of
(
400
m
L
,
1
200
M
B
a
(
O
H
)
2
)
+
(
400
m
L
,
1
50
M
H
C
l
)
+
(
200
mL of water
)
l
o
g
2
=
0.3010
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