The molecular formula : C₃H₆
Further explanation
Given
The empirical formula : CH₂
The molecular mass = 42 g/mole
Required
The molecular formula
Solution
The empirical formula is the smallest comparison of atoms of compound forming elements.
A molecular formula is a formula that shows the number of atomic elements that make up a compound.
(empirical formula) n = molecular formula
(CH₂)n=42 grams/mole
(12+2.1)n=42 grams/mole
(14)n = 42 grams/mole
n = 3
(CH₂)₃=C₃H₆
