Problem 2. (Young and Lovell, problem 3.6) Equilibrium osmotic pressure heads (h) measured at 22C are tabulated below for polystyrene (PS) sample dissolved at different concentrations in toluene. (A) Given that the densities of toluene and PS at 22C are 0.868 and 1.05g/cm3, respectively, calculate Mn and estimate the PS-toluene second virial coefficient in units of cm6/g2. (B.). Calculate a value of Chi for this data. (C) Is toluene a good solvent for PS at this temperature? (D) How would the same polymer sample behave in benzene at the theta-temperature? (for each of the concentrations above, what would be the head, h, in mm? Problem 2. (Young and Lovell, problem 3.6) Equilibrium osmotic pressure heads (h) measured at 22C are tabulated below for polystyrene (PS) sample dissolved at different concentrations in toluene. (A) Given that the densities of toluene and PS at 22C are 0.868 and 1.05g/cm3, respectively, calculate Mn and estimate the PS-toluene second virial coefficient in units of cm6/g2. (B.). Calculate a value of Chi for this data. (C) Is toluene a good solvent for PS at this temperature? (D) How would the same polymer sample behave in benzene at the theta-temperature? (for each of the concentrations above, what would be the head, h, in mm