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Twenty grams of a substance were dissolv...

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

Text Solution

Verified by Experts

The correct Answer is:
A
`M=(W_BRT)/piV=(20xx0.0821xx288xx1000)/((600//760)xx500)`=1198
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