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On dissolving 3.24g of sulphur in 40g of...

On dissolving 3.24g of sulphur in 40g of benzene, boiling point of solution was higher than that of benzene by 0.81K. `K_b` value for benzene is `2.53K kg mol^-1`. What is the molecular formula of sulphur?
`(Atomic mass of sulphur=32 g mol^-1)`.

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