The weight average molecular mass and the number average molecular mass of a polymer are 20,000 (Mw) and 30,000 (Mn), respectively. The polydispersity index is equal to: a. 2 b. < 1 c. > 1 d. 1.5 e. None of the above

The weight average molecular mass and the number average molecular mass of a polymer are 20,000 (Mw) and 30,000 (Mn), respectively. The polydispersity index is equal to: a. 2 b.  < 1 c.  > 1 d. 1.5 e. None of the above

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The weight average molecular mass and the number average molecular mass of a polymer are 20 , 000 ( M W ) and 30,000 ( M n ), respectively. The polydispersity index is equal to: a. 2 b. < 1 c. > 1 d. 1.5 e. None of the above

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