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Title: How would I find the percent mass and molality? Post by: riri87 on Sep 9, 2013 Consider an aqueous solution of isopropyl alcohol, C3H7OH. If the mole fraction of alcohol is 0.3466, what is the percent by mass of alcohol in the solution?
and Consider an aqueous solution of isopropyl alcohol, C3H7OH. If the mole fraction of alcohol is 0.254, what is the molality of alcohol in the solution? I just need an explanation, I am so confused. Title: How would I find the percent mass and molality? Post by: rmahmud20 on Sep 9, 2013 molefraction is the ratio of the number of moles of the particular component to the total number of moles of the solution. i.e.
Molefraction of A = No. of moles of A/ No. of moles of solution Mass percentage = Mass of solute/mass of solution* 100 Molality of solution = no. of moles of solute /Mass of solvent in Kg You just have to convert Moles to the mass by the relation: Mole=mass/Molar mass Title: How would I find the percent mass and molality? Post by: ashtonmoss on Sep 9, 2013 Content hidden
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