Organic Chemistry SIN 55026

Week 1 : Classification of Hydrocarbons - Alkanes and Alkynes.

Chain

1 Methane 2 Ethane 3 Propane 4 Butane 5 Pentane 6 Hexane 8 Octane 9 Nonane

Alkanes - single bonding between Carbons - CnH2n+2

Alkenes - double bonding between Carbons - CnH2n

Alkynes - triple bonding between Carbons - CnH2n-2

Cyclic

Aromatic - Benzene like - CnH2n-6

Alicyclic

cyclo Alkanes - single bonding between Carbons - CnH2n ( Hint : the two that would be at the "end" shed one hydrogen )

cyclo Alkenes - double bonding between Carbons - CnH2n-2

cyclo Alkynes - triple bonding between Carbons - CnH2n-4

Avogadro's Number is 6.02257 X 10^23

Melting Point is LOWERED by impurities. Hence use of Mixed melting point determinations to asess purity.