Molarity, Molality & Mole Fraction Calculations for Glycerol-Water Solution

[magma_saber]

Homework Statement

A solution containing equal masses of glycerol, C3H8O3, and water has a density of
1.10 g/mL. Calculate the (a) molarity; (b) mole fraction of glycerol; (c) molality of
the solution.

Homework Equations

M=moles of solute/liters of solution
mole fraction = n1/n(total)
molality = mole of solute/kg of solvent

The Attempt at a Solution

How do you calculate the moles? i think i got the liters of solution by doing this: molar mass of gycerol/density. then convert the mL to L.

 

[Borek]

You are told "equal masses". That means every substance mass is a third of the solution mass. Start with 1 liter.