A solution of water (Kf = 1.86 °C/m) and glucose freezes at -2.35 °C. What is the molal concentration of glucose in this solution? Assume that the freezing point of pure water is 0.00 °C. Express your answer to three significant figures and include the appropriate units.
m = molality
Boiling points and molality Similar to the freezing-point depression, the boiling-point elevation ΔTb of a solution is quantitatively related to the molality m and the boiling-point-elevation constant Kb of the solvent by the equation ΔTb = Kb * m where the boiling-point elevation is the difference between the boiling points of the solution and the pure solvent.
Part C A solution of water (Kb = 0.512 °C/m) and glucose boils at 102.56 °C. What is the molal concentration of glucose in this solution? Assume that the boiling point of pure water is 100.00 °C. Express your answer to three significant figures and include the appropriate units.
m = molality