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Question: Empirical formula of a compound is CH<sub>2</sub>O. If its molecular mass is 180, then the molecular...

Empirical formula of a compound is CH2O. If its molecular mass is 180, then the molecular formula of the compound is-

A

C6H12O6

B

C5 H10 O5

C

C3 H6 O3

D

C3 H8 O4

Answer

C6H12O6

Explanation

Solution

Empirical formula mass = CH2O

(E.F.) = 12 + 2 + 16 = 30

Molecular formula = mol.massE.F.mass×E.F\frac{mol.mass}{E.F.mass} \times E.F

= 18030×CH2O\frac{180}{30} \times CH_{2}O

= C6H12O6