In a polymer sample 30% of molecules have a molecular mass 20,000 , 40 – InterviewSolution

1.	In a polymer sample 30% of molecules have a molecular mass 20,000 , 40 % have 30,000 and the rest 60,000 . What is the weight average molecular mass of the polymer
Answer» 40300 30600 43333 50400 Answer :C

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