C:2 The data in the table represent osmotic pressure measurements on a polystyrene sample in the indicated solvents, obtained by the intention of extracting the third virial coefficient. Analyse the data by two means. First, fit directly to the appropriate polynomial. Then, use the so-called Bawn plot: ci and ci is any two of the measured concentrations. Provide the best estimate of Mn, and the associated uncertainty, for this sample. Provide the best estimate of second virial coefficients in the two solvents. Provide the best estimate of third virial coefficients in the two solvents. Is the one in cyclohexane zero within error