What is the correct formula for aluminum hypochlorite?
The Correct Answer and Explanation is :
The correct formula for aluminum hypochlorite is Al(ClO)₃.
Explanation:
Aluminum hypochlorite is a compound formed by aluminum and the hypochlorite ion (ClO⁻). To understand how to derive the correct chemical formula, let’s break down the components:
- Aluminum Ion:
Aluminum (Al) typically forms a +3 charged ion, denoted as Al³⁺, when it loses three electrons to achieve a stable electron configuration. - Hypochlorite Ion:
The hypochlorite ion (ClO⁻) consists of chlorine (Cl) bonded to one oxygen (O), and it carries a -1 charge. This ion is typically formed when chlorine in its +1 oxidation state combines with oxygen in a -2 oxidation state. - Charge Balance:
In a neutral compound, the total positive charge must balance the total negative charge. Since aluminum has a charge of +3, and each hypochlorite ion has a charge of -1, we need three hypochlorite ions to balance the +3 charge from aluminum. This leads to the formula Al(ClO)₃, where one aluminum ion combines with three hypochlorite ions to form a neutral compound.
Structure of Aluminum Hypochlorite:
- Al(ClO)₃ consists of one aluminum ion (Al³⁺) and three hypochlorite ions (ClO⁻).
- Each ClO⁻ ion is composed of chlorine and oxygen atoms held together by a covalent bond.
- The aluminum ion is centrally coordinated with the three ClO⁻ ions, likely in a trigonal arrangement.
This compound is relatively uncommon and typically exists in certain chemical reactions or as a transient species, as hypochlorite compounds are usually more stable in simpler forms like sodium hypochlorite (NaClO).
Chemical Behavior:
Aluminum hypochlorite might be used in specific industrial processes or in the preparation of certain disinfecting agents, though its use is limited due to instability in some conditions.