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17.6 gram of unknown solute is dissolved...

17.6 gram of unknown solute is dissolved in 100 gram of a solvent `(K_(b)=2" K molality"^(-1))` to prepare a solution. Boiling point of pure solvent is `225^(@)C` where as boiling point of this solution is `229^(@)C`. Predict molecular formula of solute if it contains 54.54% C and 9.09% H (by weight ).

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`C_(4)H_(8)O_(2)`
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