equal mass of helium methane and oxygen are mixed in a container, find the percentage of the total pressure exerted by helium
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Explanation:
Mole fraction of O
2
=
32
w
+
4
w
32
w
=
32
w
×
9w
32
=
9
1
Partial pressure of oxygen =P×x
O
2
=P
total
×
9
1
or
9
1
P
total
.
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