Question

A.) A protein solution containing 70.0 mg of the protein (dissolved in water) displays an osmotic pressure of 319.88 Pa at 310.15 K. If the volume of the protein solution is 22.0 mL, what is the molar mass of the protein?

B.)What is the boiling point (in °C) of a solution of 8.16 g of I₂ in 57.5 g of toluene, assuming the I₂ is nonvolatile? (For toluene, T_b = 110.63°C and K_b = 3.40°C·kg/mol.)

C.)What is the freezing point (in °C) of a solution of 8.07 g of I₂ in 70.9 g of p-xylene? (For p-xylene, T_f = 13.25°C and K_f = 4.31°C·kg/mol.)