If 8 g of a non-electrolyte solute is dissolved in 114 g of n-octane to reduce its vapor pressure to 80 %, the molar mass (in g mol–1) of the solute is:
[Molar mass of n-octane is 114 g mol–1]
1.
40
2.
60
3.
80
4.
20
Subtopic: Relative Lowering of Vapour Pressure |
60%
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