Some nonelectrolyte solute (molar mass 5 142 g/mol) was dissolved in 150. mL of a
Chapter 17, Problem 17.144(choose chapter or problem)
Some nonelectrolyte solute (molar mass 5 142 g/mol) was dissolved in 150. mL of a solvent (density 5 0.879 g/cm3 ). The elevated boiling point of the solution was 355.4 K. What mass of solute was dissolved in the solvent? For the solvent, the enthalpy of vaporization is 33.90 kJ/mol, the entropy of vaporization is 95.95 J/K mol, and the boiling-point elevation constant is 2.5 K kg/mol.
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