Homework Help: Chemistry

Posted by Shawn on Monday, December 17, 2012 at 9:57am.

What mass of glycerin (C3H8O3), a nonelectrolyte, must be dissolved in 400.0 g water in order to give a solution with a boiling point of 103.50 C?

Chemistry - DrBob222, Monday, December 17, 2012 at 12:02pm
delta T = Kb*m
Solve for molality = m

m = mols/kg solvent
Solve for mols.

mols = grams/molar mass. You know mols and molar mass, solve for grams.

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