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Calculate the relative lowering in V.P. ...

Calculate the relative lowering in V.P. if 10 g of a solute (molar mass 100) are dissolved in 180g water.

A

`0.99`

B

`0.099`

C

`9.9`

D

`0.0099`

Text Solution

Verified by Experts

The correct Answer is:
D
`(P^(@)-P_(S))/(P^(@))= (n)/(n+ N)= x_(B)`
`n_(B)= 0.1, n_(A)= 10`
`x_(B)= (0.1)/(10.1)= 0.0099`
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