What is the chemical formula of aluminium hydroxide?
1 answer(s)
The chemical formula for aluminium hydroxide is Al(OH)₃.
It all comes down to balancing the charges. The aluminum ion has a positive 3 charge (Al³⁺). The hydroxide group (OH) has a negative 1 charge. To create a neutral compound, you need three of those hydroxide groups to perfectly balance out the single aluminum ion. That’s why you see the OH in parentheses with a 3 on the outside, showing you need three of the entire group.