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A polymer has weight average molecular w...

A polymer has weight average molecular weight is 40% more than is number average moelcular weight. Its PDI is equal to 0.7 x. What is x?

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The correct Answer is:
2
`PDI = (bar(M)w)/(bar(M)n) = 0.7 x = (140)/(100), x = (14)/(0.7 xx 10) = 2`
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