The boilling point of a solution containing 50 gm of a non-clatile solute in 1 kg of solvent is `0.5^(@)`higher than that of the pure solvent. Determi

Question

The boilling point of a solution containing 50 gm of a non-clatile solute in 1 kg of solvent is `0.5^(@)`higher than that of the pure solvent. Determi

The boilling point of a solution containing 50 gm of a non-clatile solute in 1 kg of solvent is `0.5^(@)`higher than that of the pure solvent. Determine the molecular mass of the solte (Given molcular mass of solvent= 78 `g mol^(-1) and K_(b) for slvent=2.53 km^(-1))`

Monjur Alahi

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2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

`M_(B)=(K_(b)xxW_(B))/(DeltaT_(b)xxW_(A))`
`W_(B)=50g,W_(A)=1kg,Delta_(b)=0.5K,`
`K_(b)=2.53 km^(-1)or 2.53K kg mol^(-1)`
`M_(B)=((2.53K kg mol^(-1))xx(50g))/((0.5 K)xx(1kg))=253 g mol^(-1)`

5 views Answered 2023-02-05 15:29