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A solution containing 18g of non - volat...

A solution containing 18g of non - volatile non - electrolyte solute is dissolved in 200g of water freezes at 272.07K. Calculate the molecular mass of solute. Given `K_(f)=1.86kg//mol` and freezing point of water = 273K

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`DeltaT_(f)^(@)-T_(f)`
`DeltaT_(f)=273-272.07`
`DeltaT_(f)=0.93`
`M_(2)=(1000xx w_(2)xxk_(f))/(DeltaT_(f)xxw_(1))`
`M_(2)=(1000xx18xx1.86)/(0.93xx200)`
`M_(2)="180 gmol"^(-1)`
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