A biochemical engineer isolates a bacterial gene fragment and dissolves a 13.1 mg sample of the material in enough water to make 39.3 mL of solution. The osmotic pressure of the solution is 0.340 torr at 25°C.
(a) What is the molar mass of the gene fragment?
(b) If the solution density is 0.997 g/mL, how large is the freezing point depression for this solution (Kf of water=1.86°C/m)?