# Aluminum Oxide [Al2O3] Molecular Weight Calculation

The molecular weight of Aluminum Oxide [Al2O3] is 101.9612768.

Aluminum Oxide [Al2O3] is an inorganic compound of two elements: Aluminum and Oxygen. The molecular weight of Aluminum Oxide is 101.9612768 which can be calculated by adding up the total weight (atomic weight multiplied by their number) of all its elements.

# CALCULATION PROCEDURE: Aluminum Oxide [Al2O3] Molecular Weight Calculation

Step 1: Find out the chemical formula and determine constituent atoms and their number in an Aluminum oxide molecule.
From the chemical formula, you will know different atoms and their number in an Aluminum oxide molecule. The chemical formula of Aluminum oxide is [Al2O3]. From the chemical formula, you can find that one molecule of Aluminum oxide has two Aluminum (Al) atoms and three Oxygen (O) atoms.

Step 2: Find out the atomic weights of each atom (from the periodic table).

Atomic weight of Aluminum (Al): 53.9630768 (Ref: ciaaw-aluminium)
Atomic weight of Oxygen (O): 15.9994 (Ref: Jlab-ele008)

Step 3: Calculate the total weight of each atom in an Aluminum Oxide molecule by multiplying its atomic weight by its number.

Number of Aluminum atoms in Aluminum Oxide: 2
Atomic weight of Aluminum: 26.9815384
Total weight of Aluminum atoms in Aluminum Oxide: 26.9815384 x 2 = 53.9630768

Number of Oxygen atoms in Aluminum Oxide: 3
Atomic weight of Oxygen: 15.9994
Total weight of Oxygen atoms in Aluminum Oxide: 15.9994 x 3 = 47.9982

Step 4: Calculate the molecular weight of Aluminum Oxide by adding up the total weight of all atoms.

Molecular weight of Aluminum Oxide: 53.9630768 (Aluminum) + 47.9982 (Oxygen) = 101.9612768

So the molecular weight of Aluminum Oxide is 101.9612768.

Aluminum Oxide [Al2O3] Molecular Weight Calculation