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Assuming that O(2) molecule is spherical...

Assuming that `O_(2)` molecule is spherical in shape with radiusw `2overset(@)A`, the percentage of the volume of `O_(2)` molecules to the total volume of gas at S.T.P. is :

A

0.0009

B

0.009

C

9.0E-5

D

0.00045

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