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A polymeric material consists of 6 molecules of molecular weight 50,000, 4 molecules of molecular weight 100,000, 2 molecules of molecular weight 200,000, and 1

A polymeric material consists of 6 molecules of molecular weight 50,000, 4 molecules of molecular weight 100,000, 2 molecules of molecular weight 200,000, and 1 molecule of molecular weight 400,000. Calculate the number average molecular weight, weight average molecular weight, and polydispersity index. Is the polymer monodisperse or polydisperse?

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