What is the Molar Mass of Aluminum Oxide?

The molar mass of aluminum oxide (Al₂O₃) is calculated by adding the atomic masses of its constituent elements. Aluminum (Al) has an atomic mass of approximately 26.98 g/mol, and oxygen (O) has an atomic mass of about 16.00 g/mol.

To find the molar mass of aluminum oxide, follow these steps:

1. Determine the number of atoms of each element in the compound. In Al₂O₃, there are 2 aluminum atoms and 3 oxygen atoms.
2. Multiply the atomic mass of each element by the number of atoms of that element in the compound.
   • For aluminum: 2 × 26.98 g/mol = 53.96 g/mol
   • For oxygen: 3 × 16.00 g/mol = 48.00 g/mol
3. Add the results from step 2 to get the total molar mass of the compound.
   • 53.96 g/mol (aluminum) + 48.00 g/mol (oxygen) = 101.96 g/mol

Therefore, the molar mass of aluminum oxide (Al₂O₃) is 101.96 g/mol.