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Twenty grams of a substance were dissolved in 500ml. Of water and the osmotic pressure of the solution was found to be 600mm of mercury at `15^(@)"C".` Determine the molecular weight of the substance.
A. 1198
B. 500
C. 1200
D. 1000

1 Answer

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Best answer
Correct Answer - A
`M=(W_BRT)/piV=(20xx0.0821xx288xx1000)/((600//760)xx500)`=1198

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