Question

Give two exmaples of molecules having molecular formula same as emperical formula

Answer 1

The molecular formula of a compound may be the empirical formula, or it may be a multiple of the empirical formula. For example, the molecular formula of butene, C4H8, shows that each freely existing molecule of butene contains four atoms of carbon and eight atoms of hydrogen. Its empirical formula is CH2.

Answer 2

Answer:-

This usually occurs in organic chemistry . Take acetic acid and formaldehyde and glucose.  

Acetic acid = CH3COOH - C2H4O2 Empirical formula = CH2O  

Formaldehyde = CH2O  

Glucose C6H12O6 = empirical formula = CH2O

Butene= molecular firmula is C4H8 but its empericsl formula is CH4

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