In Part I of this series, a mathematical model was proposed which could describe the experimental data very well under various copolymerization conditions covering wide ranges of initial mole fraction of styrene, f10, at two different levels AIBN(2.2’-azobisisobutyronitrile) initiator concentration. In this part both the copolymer composition and the number and the weight average molecular weights of the copolymer are predicted by using the model under the various operating conditions. The presented extension of the PKRCM(pseudo-Kinetic rate constant method)is proven very useful in obtaining a reliable prediction of the copolymer composition and molecular weight averages.