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The vapour pressure of benzene at 90^(@)...

The vapour pressure of benzene at `90^(@)C` is `1020` torr. A solution of `5g` of a solution in `58.5g` benzene has vapour pressure 990 torr. The molecular weight of the solute is?

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`(P^(0)-P_(S))/(P_(S)) =(w xx M)/(m xx W) rArr (1020 -990)/(990) = (5 xx 78)/(m xx 58.5) rArr m = 220`
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ALLEN-SOLUTIONS-EXERCISE -05 [B]
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  14. Properties such as boiling point, freezing point and vapour pressure o...

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  15. Water is added to the solution M such that the mole fraction of water ...

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  16. The Henry's law constant for the solubility of N(2) gas in water at 29...

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  17. The freezing point (in .^(@)C) of a solution containing 0.1 g of K(3)[...

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  18. For a silute solution conatining 2.5 g of a non-volatile non-electroly...

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  19. Benzene and naphthalent form an ideal solution at room temperature. Fo...

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  20. A compound H(2)X with molar weigth of 80g is dissolved in a solvent ha...

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  21. If the freezing point of a 0.01 molal aqueous solution of a cobalt (II...

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