Thread: What is the boiling point of a solution composed of urea?

What is the boiling point of a solution composed of 15.0 g of urea, (NH2)2CO, in 0.500 kg of water?

Moles urea = 15.0 g/ 60.07 g/mol =0.250
molality = 0.250 mol / 0.500 Kg =0.500
delta T = kb x m = 0.512 x 0.500 =0.256
b.p. = 100 + 0.256 = 100.256°C