A carbohydrate with the empirical formula CH_ | vedclass

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(A) Given that $0.1 \ mol$ of the carbohydrate contains $1 \ g$ of hydrogen. Therefore,$1 \ mol$ of the carbohydrate contains $10 \ g$ of hydrogen. Th

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$C_5H_{10}O_5$

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(A) Given that $0.1 \ mol$ of the carbohydrate contains $1 \ g$ of hydrogen. Therefore,$1 \ mol$ of the carbohydrate contains $10 \ g$ of hydrogen. The empirical formula is $CH_2O$. Let the molecular formula be $(CH_2O)_n$,which contains $2n$ moles of hydrogen atoms. The molar mass of hydrogen in $1 \ mol$ of the compound is $2n 	imes 1 \ g/mol = 2n \ g$. Equating this to the given mass: $2n = 10$,so $n = 5$. Thus,the molecular formula is $(CH_2O)_5 = C_5H_{10}O_5$.

$A$ carbohydrate with the empirical formula $CH_2O$ contains $1 \ g$ of hydrogen in $0.1 \ mol$ of the compound. Determine the molecular formula of the carbohydrate.

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