You add 2g of sugar into 23mL of water. Estimate the boiling point.

I would say its above 100 since waters boiling point is 100. So maybe 120?

1 answer

Probably not that high.
2 g/molar mass sugar (which I think is about 342 = moles sugar.
molality = mols/kg solvent = 0.005850.023 = about 0.25.
delta T = Kb*m
delta T = 0.512 x 0.25 = 0.13 or about 100.13 C. Check my figures.