When the mixture of two immicible liquid...

When the mixture of two immicible liquids (water and nitrobenzene) boils at 372K and the vapour pressure at this temperature are `97.7"k Pa"("H"_(2)"O") "and 3.6 k Pa"("C"_(6)"H"_(5)"NO"_(2)).` Calculate the weight % of nitrobenzene in the vapour.

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