Chemistry, 16.04.2020 00:02 michaelsmith710
The dissolution of 7.75 g of a substance in 825 g of benzene (C6H6) at 298 K raises the boiling point by 0.575 ◦C. Note that kf = 5.12 K kg mol−1 , kb = 2.53 K kg mol−1 , and the density of benzene is 876.6 kg m−3 . Calculate
(a) the freezing point depression,
(b) the ratio of the vapor pressure above the solution to that of the pure solvent,
(c) the osmotic pressure,
(d) and the molecular weight of the solute. Pbenzene = 103 Torr at 298 K.
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