Answer
Use 32.0g of solute in 27.0g of solvent.
Work Step by Step
Find the molar mass of the solute and solvent.
Assume 1 mol of the solute . Also Substitute the known mole fraction (0.40) of the solute into the mole fraction equation.
Begin solving the equation algebraically. The moles of the solvent comes out to be 1.5.
Convert the moles of solute and solvent into grams by multiplying by their molar mass.
