What is the alkane with 8 carbon atoms?

The alkane with 8 carbon atoms is known as octane. Alkanes are saturated hydrocarbons characterized by the general formula CnH2n+2, where n represents the number of carbon atoms. For octane, when n equals 8, the molecular formula becomes C8H18, indicating it has 8 carbon atoms and 18 hydrogen atoms.

The naming convention for alkanes follows a specific pattern based on the number of carbon atoms present:

• Hexane corresponds to 6 carbon atoms (C6).

• Heptane corresponds to 7 carbon atoms (C7).

• Octane corresponds to 8 carbon atoms (C8).

• Nonane corresponds to 9 carbon atoms (C9).

Therefore, with 8 carbon atoms, octane is the correct name, fitting perfectly within the established nomenclature based on the number of carbon atoms in the compound.