The molecular formula for alkenes is CnH2n, where n represents the number of carbon atoms in the molecule.
The molecular formula for alkenes follows the general form CₙH₂ₙ, where n is the number of carbon atoms in the alkene. For example, if an alkene contains 3 carbon atoms, the molecular formula would be C₃H₆. Similarly, if it contains 4 carbon atoms, the molecular formula would be C₄H₈, and so on.
