The vapour pressure of water at \[{{20}^{o}}C\] is 17.54 mm. When 20g of a non-ionic, substance is dissolved in 100g of water, the vapour pressure is lowered by 0.30 mm. What is the molecular weight of the substances [UPSEAT 2001]

The vapour pressure of water at \[{{20}^{o}}C\] is 17.54 mm. When 20g

1.	The vapour pressure of water at \[{{20}^{o}}C\] is 17.54 mm. When 20g of a non-ionic, substance is dissolved in 100g of water, the vapour pressure is lowered by 0.30 mm. What is the molecular weight of the substances [UPSEAT 2001]
A.	210.2
B.	206.88
C.	215.2
D.	200.8
Answer» C. 215.2

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The vapour pressure of water at \[{{20}^{o}}C\] is 17.54 mm. When 20g of a non-ionic, substance is dissolved in 100g of water, the vapour pressure is lowered by 0.30 mm. What is the molecular weight of the substances [UPSEAT 2001]

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