The solution containing 4.0gm of a polyv...

The solution containing `4.0gm` of a polyvinyl chloride polymer in `1` litre dioxane was found to have an osmotic pressure `6.0xx10^(-4)`atmosphere at `300K`,the value of R used is `0.082`litre atmosphere`"mole"^(-1)K^(-1)`.The molecular mass of the polymer was found to be

`3.0xx10^(2)`

`1.6xx10^(-5)`

`5.6xx10^(4)`

`6.4xx10^(2)`

Text Solution

Verified by Experts

The correct Answer is:

`pi V=(w)/(m)RT`
`therefore 6xx10^(-4)xx1=(4)/(m)xx0.0821xx300 , m = 1.64xx10^(5)`

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