Using IUPAC norms write the formulae for the following:
(i) Hexaamminecobalt (III) sulphate.
(ii) Potassium trioralatochromate (III).

Explanation

To write the formulae for the given coordination compounds using IUPAC nomenclature, we will follow these steps:

### (i) Hexaamminecobalt (III) sulphate

1. **Identify the components**:
- "Hexa" indicates that there are six ligands, which in this case are "amine" (NH3).
- "Cobalt" is the central metal ion, and its oxidation state is given as (III).
- "Sulphate" refers to the sulfate ion (SO4) with a charge of -2.
...