Here's a breakdown:

* Al: Represents the Aluminum atom.

* (CH₃COO): Represents the acetate ion (CH₃COO⁻).

* ₃: Indicates that there are three acetate ions for each aluminum ion.

This formula reflects the fact that aluminum has a +3 charge (Al³⁺) and acetate has a -1 charge (CH₃COO⁻). To balance the charges, three acetate ions are needed for each aluminum ion.