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Chemistry 121, Winter 2008, LA Tech
Units of Unsaturation
Cycloalkane ring       CnH2n   (one unit of unsat.)
Unsaturated hydrocarbons:
            
       bond           CnH2n   (one unit of unsat.)
    bond          CnH2n-2 (two units of unsat.)
Compounds that have have fewer hydrogens than saturated hydrocarbons  (CnH2n+2). Two hydrogen are considered as unit of unstauration