1.

Cyclopropane and oxygen at partial pressure of 170 and 570 torr respectively are mixed in a gas cylinder . The ratio of the number of moles of cyclopropane to the number of moles of oxygen is

Answer»

`0.190`
0.23
`0.30`
0.39

Solution :The RATIO of moles is the same as the ratio of their PARTIAL PRESSURES `:`
`( 170)/( 570) = 0.30`


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