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Byju's Answer
Standard XII
Chemistry
Concentration Terms
The mole frac...
Question
The mole fraction of
N
2
O
In a mixture of
N
2
O
and
N
O
is
1
3
. The mole fraction of
N
O
in a mixture of
N
O
and
N
O
2
is
3
4
. The two mixtures are mixed in
3
:
4
molar ratio. the mole fraction of
N
O
2
in the resulting mixture is:
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Solution
In
N
2
O
+
N
O
mixture
X
N
2
O
=
1
3
∴
X
N
O
=
1
−
1
3
=
2
3
In
N
O
+
N
O
2
mixture
X
N
O
=
3
4
∴
X
N
O
2
=
1
−
3
4
=
1
4
The two mixtures are mixed in the ratio of
3
:
4
∴
X
N
2
O
=
(
1
3
)
×
3
=
1
X
N
O
=
2
3
×
3
+
3
4
×
4
=
2
+
3
=
5
X
N
O
2
=
1
4
×
4
=
1
Mole fraction of
N
O
2
=
X
N
O
2
X
N
2
O
+
X
N
O
+
X
N
O
2
=
1
7
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