A homologous series is a series of molecules which:
The table shows four alkanes, their molecular formula, displayed formula and ball-and-stick model diagram.
The formula of any alkane can be worked out using the general formula CnH2n+2 where n = the number of carbon atoms.
For example, for a hydrocarbon with ten carbon atoms:
Work out the formula for a hydrocarbon molecule with 6 carbon atoms.