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Vapour pressure of pure water at 298 K i...

Vapour pressure of pure water at 298 K is 23.8 mm Hg. 50 g of urea `(NH_2CONH_2)` is dissolved in 850 g of water. Calculate the vapour pressure of water for the solution and its relative lowering.

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Knowledge Check

  • 18 g glucose (C_6H_12O_6) is added to 178.2 g water. The vapor pressure of water (in torr) for this aqueous solution is.

    A
    759
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  • The vapour pressure of acetone at 20^@C is 185 torr. When 1.2 g of a non-volatile solute was dissolved in 100 g of acetone at 20^@C its vapour pressure was 183 torr. The mass (g mol^(-1)) of the substance is.

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