A binary mixture composed of components A (18 g/mol) and B (46 g/mol) is described by the following equation as a function of mole fraction for the molar density property at a specific temperature: = ₁² + ₁ + Here, = 5 10³, = 1 10², and = 2 10². The molar density is given in units of mol/cm³.

a) Create the ₁ graph based on the provided information.

b) Calculate the partial molar volumes of components A (weight fraction of 20%) and B (weight fraction of 80%) in the solution.