Question

what effect does adding a solute have on the boiling point of a solution? a. the temp. at which the solution boils is lowered b. the temp. at which the solution boils is unchanged c. the temp. at which the solution boils is raised d. the solution will never reach a boiling point temp.

Answer 1

A dissolved solute raises the boiling point of a solvent.

Answer 2

I believe the answer is C, the temperature at which the solution boils is raised. When a solute is added to a solvent, the boiling point will be higher than the boiling point of the pure solvent. Such that when anything is dissolved in a solvent say water, the solution will boil at a higher temperature than pure solvent (water) would.  The effect of adding solute to a solvent however, has an opposite effect on freezing point of a solution as it does on the boiling point.