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mols glucose = grams/molar mass
mols methanol = grams/molar mass
Total mols = mols glucose + mols methanol
mole fraction methanol = nmethanol/total mols.
psoln = Xmethanol*Pomethanol
For the difference, what about interactions between solvent molecules. What about interactions between solvent and solute?
What is the vapor pressure (in mmHg) of a solution containing 16.0 g of (3 marks) glucose (C6H12O6) in 80.0 g of methanol (CH3OH)? The vapor pressure of pure methanol at 27 °C is 140 mm Hg. If the experimentally determined vapor pressure is 128 mm Hg, account for the difference between the two values. (3 significant figures).
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