What is the name of the compound with the formula al (ch3coo) 3?

Aluminium Acetate

Explanation:

Aluminium Acetate is made up of Aluminium and Acetic Acid. The chemical formula of Aluminium Acetate can be opened into its components as,

Al (H₃CCOO) ₃ → Al⁺³ + 3 H₃CCOO⁻

It means Aluminium Acetate is made up of one Aluminium Cation and three Acetate Anions.

Nomenclature:

Ionic compounds are named as the Positive specie is named first (in our case Aluminium) and the negative part is named secondly (in our case Acetate).

Name of Acetate Ion:

Carboxylic acids are weak acids. On donation of proton carboxylic acids are converted into Carboxylate ions as,

R--COOH → R--COO⁻ + H⁺ (Carboxylic acid into Carboxylate)

Examples:

H₃C--COOH → H₃--COO⁻ + H⁺ (Acitic acid into Acetate)

H₅C₂--COOH → H₅C₂--COO⁻ + H⁺ (Propanoic acid into Propanoate)