Learning intentions That organic chemistry is the chemistry of carbon That alkanes are a homologous series of hydrocarbons with a general formula C n H 2n+2 That alkanes may form straight or branched molecules, and these are called isomers That alkanes are economically important as fuels That our written work is legible That we can locate and use information from the reference book Advanced Chemistry for You

The Periodic Table IIIIIIIVVVIVIIVIII 1 1H1H 2 He 2 3 Li 4 Be 5B5B 6C6C 7N7N 8O8O 9F9F 10 Ne 3 11 Na 12 Mg 13 Al 14 Si 15 P 16 S 17 Cl 18 Ar

Carbon Carbon forms the basis of all organic molecules. Organic molecules are found in living things (organisms) e.g. amino acids, DNA, proteins, fats, carbohydrates, enzymes etc ‘organic’ means it contains carbon Organic chemistry is the chemistry of carbon

The first four alkanes DrawingGraphic formula Structural formula Molecular formula

Naming the alkanes Number of carbon atoms NameMolecular formula

Pentane (C 5 )Kerosene (C 10 – C 16 ) Volatile = evaporates easily Burns at room temperature Does not evaporate easily Needs a wick to burn Soot = carbon

Products of combustion C 5 H 10 + O 2

Capturing the products

Have we covered these? That organic chemistry is the chemistry of carbon That alkanes are a homologous series of hydrocarbons with a general formula C n H 2n+2 That alkanes may form straight or branched molecules, and these are called isomers That alkanes are economically important as fuels That our written work is legible That we can locate and use information from the reference book Advanced Chemistry for You