Oxygen and cyclopropane at partial pressures orf 570 torr and 170 torr respectively are mixed in a gas cylinder. What is the ratio of the number of moles of cyclopropane to the number of moles of oxygen?

Options

A. 0.39
B. 0.19
C. 0.23
D. 0.3

Answer

D

Explanation

By Ideal gas equation, `P_(1)V=n_(1)RT`
`n_(1)propP_(1)` and `n_(2)propP_(2)`
`(n_(1))/(n_(2))=(P_(1))/(P_(2))rArr(n_(1))/(n_(2))=170/570=0.30`