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At 25^@C, a solution containing 0.1 g of...

At `25^@C`, a solution containing 0.1 g of polyisobutylene in 50 ml. of benzene developed a rise of 2.4 mm at osmotic equilibrium . If density is `0.8 c c^(-1)`, calculate the molecular weight of polyisobutylene .

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The correct Answer is:
`2.39 xx 10^(5)`
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