Calculate the freezing-point depression and osmotic pressure in torr at 25°C for an aqueous solution of 3.4 g/L of a protein (molar mass = 9.0 x 10⁴ g/mol) if the density of the solution is 1.0 g/cm³. (Use the data in the Boiling-Point Elevation (Kb) and Freezing-Point Depression (Kf) Constants table.)

freezing-point depression: __________ °C