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The vapour pressure of pure benzene, C(6...

The vapour pressure of pure benzene, `C_(6)H_(6)` at `50^(@)C` is 268` Torr. How many moles of non-volatile solute per mol of benzene is required to prepare a solution of benzene is required to prepare a solution of benzenen having a vapour pressure of `167` Torr at `50^(@)C` ?

A

`0.377`

B

`0.605`

C

`0.623`

D

`0.395`

Text Solution

Verified by Experts

The correct Answer is:
A
`(268-167)/(268)=xrArr So xx=0.37`.
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