formulae Flashcards
empirical formula
shows the simplest ratio of atoms in a compound
molecular formula
shows how many types of each atom there are in each molecule of the compound
general formula
used to calculate the molecular formula of any member of a family of compounds
e.g (aliphatic) alkanes C(n)H(2n+2).
displayed formula
shows all the atoms and all the bond in a molecule. it shows the structure of molecules with the same molecular formula but different structures
structural formula
minimum detail to show the arrangement of atoms in a molecule
skeletal formula
omit hydrogen atoms and represent carbon to carbon bonds as straight lines leaving just a carbon skeleton with the functional groups attached to it