At 25 C, a solution is prepared by dissolving 22.1 grams of toluene, C,H, in 250.0 mL of benzene, C,H, density 0.866 g/mL. For your calculations use 12.0 as the molar mass of carbon, and 1.00 as the molar mass of hydrogen. Calculate the mole fraction of benzene Calculate the mole fraction of toluene Calculate the mass percent of benzene Calculate the mass percent of toluene Calculate the concentration of benzene in ppm Calculate the concentration of toluene in ppm Calculate the molality of toluene in the solution What type of intermolecular force would exist between benzene and toluene What type of intermolecular force would exist between two molecules of benzene What type of intermolecular force would exist between two molecules of toluene

An aqueous NaCl solution is made using 112 g of NaCl diluted to a total solution volume of 1.00 L. Calculate the molarity, molality, and mass percent of the solution. (Assume a density of 1.08 g/mL for the solution.)

A chemist combined chloroform (CHCl3) and acetone (C3H6O) to create a solution where the mole fraction of chloroform, ?chloroform, is 0.139. The densities of chloroform and acetone are 1.48 g/mL and 0.791 g/mL, respectively. Calculate the molarity of the solution. Assume the volumes are additive.

2. What is the boiling-point elevation of a solution made from 20.1 g of a non- electrolyte solute and 400.0 g of water? The molar mass of the solute is 62.0 g.