Suppose you have following samples by mixing two batches of polystyrene (ps). calculate the mn, mw and pdi of the mixture in each question: (1) first, let's explore an ideal case: the polymers in one batch are monodispersed, which means all the polymer chains in one batch have the same molecular weight batch 1: ps (monodispersed molecular weight mi) batch 2: ps (monodispersed molecular weight m2) polymer mixture: w is from batch 1 and (1-w) is from batch 2 (w is the weight fraction) calculate mn, mw and pdi of the mixture in terms of m1, m2, and w (2) unfortunately, it is almost impossible to synthesize polymers perfectly like in part polydispersed. each batch usually has a different mn (1), which means that they are and mw batch 1: ps (mw,1 = 120,000 da, mn,1 100,000 da) batch 2: ps (mw 60,000 da, mn,2 30,000 da) ,2 polymer mixture: 10 g of polymer from batch 1 and 30 g of polymer from batch 2. calculate mn, mw and pdi of the mixture.