The empirical formula of a compound is CH2O. 0.0835 moles of the compound contains 1.0g of hydrogen. Molecular formula of the compound is :-

Question

The empirical formula of a compound is CH2O. 0.0835 moles of the compound contains 1.0g of hydrogen. Molecular formula of the compound is :- (A) C6H12O6 (B) C5H10O5 (C) C4H8O4 (D) C3H6O3

Tardigrade Admin · Accepted Answer

30gCH2O arrow 2g of hydrogen 15gCH2O arrow 1g of hydrogen 0.0835 moles of CH2O has a mass of 15g ∴ Molar mass =( text Mass / text Moles )=(15/0 . 0835)=179.6∼ eq180 ∴ C6H12O6=180

Q. The empirical formula of a compound is $C H_{2} O .$ $0.0835$ moles of the compound contains $1.0 g$ of hydrogen. Molecular formula of the compound is :-

$C_{6} H_{12} O_{6}$

$C_{5} H_{10} O_{5}$

$C_{4} H_{8} O_{4}$

$C_{3} H_{6} O_{3}$

$30 g C H_{2} O \to 2 g$ of hydrogen
$15 g C H_{2} O \to 1 g$ of hydrogen
$0.0835$ moles of $C H_{2} O$ has a mass of $15 g$
$∴$ Molar mass $= \frac{Mass}{Moles} = \frac{15}{0.0835} = 179.6 \sim e q 180$
$∴ C_{6} H_{12} O_{6} = 180$

Q. The empirical formula of a compound is CH2​O. 0.0835 moles of the compound contains 1.0g of hydrogen. Molecular formula of the compound is :-

C6​H12​O6​

C5​H10​O5​

C4​H8​O4​

C3​H6​O3​