Find the weight average molecular weight

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Determine a polymer with a number average molecular weight of 6,200 Daltons. The polymer is made of two different fractions. The first fraction has 40 molecules while the second one has 60 molecules with molecular weight of 7,000 Daltons. Compute

1. (a) Find the number of molecules making the first fraction of this polymer

2. (b) Find the weight average molecular weight.

Reference no: EM13677178

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