Calculate the molality of a sugar solution that contains 3.94 g sucrose (C12H22O11) dissolved in 285 g water.

Molality = moles of solute / kg of solvent

moles of solute = mass/molar mass

moles of solute = 3.94 g / (342 g/mol)

moles of solute = 0.01 mol

molality = 0.01 mol / 0.285 kg

molality = 0.04 m