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6. I suggest using Excel to answer this question. Consider the following distribution of polymer chains: 5...

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Chemistry

6. I suggest using Excel to answer this question. Consider thefollowing distribution of polymer chains:

5 chains of degree of polymerization 10

25 chains of degree of polymerization 100

50 chains of degree of polymerization 500

30 chains of degree of polymerization 1000

10 chains of degree of polymerization 5000

5 chains of degree of polymerization 50,000

(a) Calculate the number and weight average degree ofpolymerization and polydispersity of this collection of polymerchains.

(b) If these chains are poly(methyl methacrylate) what would bethe corresponding number and weight average molecular weights(ignore end group effects)? Hint: the MW of the repeat unit is 100g/mol.

(c) Add five more chain of degree of polymerization 10 to theabove distribution. Comment on the relative effect that this has onthe calculated number and weight average molecular weights.

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