What is the boiling point of a solution composed of 15.0g urea, (NH2)2CO, in .500kg of water?

Answer 1

moles = grams/molar mass
Sole for moles.

molality = moles/kg solvent.
Solve for molality

delta T = Kb*m
solve for delta T, then add to 100 to find the b.p.

Answer 2

50