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A sample of a polymer contains 200 molec...

A sample of a polymer contains 200 molecules of molecular mass `10^(3)` each, 300 molecules of molecular mass `10^(4)` each and 500 molecules each having `10^(5)` as a molecular mass. Mn is

A

94553

B

53200

C

25200

D

26000

Text Solution

Verified by Experts

The correct Answer is:
B
`bar(Mn) = (sum_(i=1)^(oo)Ni//Mi)/(sum Ni) = (200 xx 10^(3) + 300 xx 10^(4) + 500 xx 10^(5))/(1000) = 53200`
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