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If Mw is the weight-average molecular we...

If `M_w` is the weight-average molecular weight and `M_n` is the number, the poly dispersity index (PDI)of the polymer is given by

A

`(bar(M)_n)/(M_w)`

B

`(bar(M)_w)/(M_n)`

C

`bar(M)_w xx bar(M)_n`

D

`1/(bar(M)_w xx bar(M)_n)`

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