Calculating a Degree of Unsaturation Degree of unsaturation Number of rings and/or multiple bonds present in the molecule Unknown hydrocarbon of formula CeHnowith molecular weight of 82 has two fewer pairs of hydrogens(H14-H10=H4=2H2) than a saturated hydrocarbon Degree of unsaturation is two Possible structures for unknown 4-Methylpenta-1,3-diene Cyclohexene Bicyclo[3.1.0]hexane 4-Methylpent-2-yne (two double bonds) (one ring,one (two rings) (one triple bond) double bond) C6H10Degree of unsaturation ▪ Number of rings and/or multiple bonds present in the molecule ▪ Unknown hydrocarbon of formula C6H10with molecular weight of 82 has two fewer pairs of hydrogens (H14 – H10 = H4 = 2H2 ) than a saturated hydrocarbon ▪ Degree of unsaturation is two ▪ Possible structures for unknown Calculating a Degree of Unsaturation