160 likes | 437 Views
Other aliphatic hydrocarbons. Objectives. Rules. Unsaturated. Alkenes. I certainly learnt to call ethylene ethene and propylene propene (see slide 1). Molecular formula. Alkanes C n H 2n+2 Alkenes C n H 2n Alkynes? What are the formulae of Pentane Hexene Octene Nonane. isomers.
E N D
Alkenes I certainly learnt to call ethylene ethene and propylene propene (see slide 1)
Molecular formula • Alkanes • CnH2n+2 • Alkenes • CnH2n • Alkynes? • What are the formulae of • Pentane • Hexene • Octene • Nonane
Cis and trans isomers Trans isomers are slightly more stable than cis isomers so have slightly lower heats of hydrogenation (a measure of how much energy they give out)
Alkynes Note: I would call acetylene ethyne