Answer: 121.95587 g/mol
Explanation:
- The atomic mass of aluminum is 26.98154 g/mol.
- The atomic mass of phosphorous is 30.97673 g/mol.
- The atomic mass of oxygen is 15.9994 g/mol.
Therefore, the molecular mass is:
[tex]26.98154 +30.97673 +4(15.9994)=\boxed{121.95587 \text{ g/mol}}[/tex]
