we need to plot the graph first and get the straight line and Y-intercept and then determain the value

Class Assignment 1: Membrane osmometry The following data were obtained by membrane osmometry of solution of a polystyrene sample in xylene at 90C. Use SI unit (i) Calculate the average molecular weight of the sample (ii) Determine the degree of polymerization of this polystyrene (iii) Give an example application of polystyrene