An aqueous sugar solution is formed by adding 50.1 g sucrose (C12H22O11) to 200.0 g water. What is the boiling point (in Celsius) of this sugar solution (this is NOT the ΔTb).

Question

An aqueous sugar solution is formed by adding 50.1 g sucrose (C12H22O11) to 200.0 g water. What is the boiling point (in Celsius) of this sugar solution (this is NOT the ΔTb).
Kb H2O = 0.51 Celsius/m

DrBob222 · Answer

moles sucrose = grams/molar mass molality = moles/kg solvent Solve for molality = m delta T = Kb*m Solve for delta T, then add that to the normal boiling point.