Calculate the molecular mass of Na3PO3

To calculate the molecular mass of Na3PO3, you need to know the atomic masses of the elements involved, which are Sodium (Na), Phosphorus (P), and Oxygen (O).

1. Sodium (Na) has an atomic mass of approximately 23 g/mol. Since there are 3 sodium atoms in the formula, you multiply 3 by 23 to get 69 g/mol.

2. Phosphorus (P) has an atomic mass of approximately 31 g/mol. Since there is only one phosphorus atom in the formula, it contributes 31 g/mol.

3. Oxygen (O) has an atomic mass of approximately 16 g/mol. Since there are 3 oxygen atoms in the formula, you multiply 3 by 16 to get 48 g/mol.

4. Add these amounts together to find the total molecular mass of Na3PO3: 69 g/mol (for Na) + 31 g/mol (for P) + 48 g/mol (for O) = 148 g/mol.

So, the molecular mass of Na3PO3 is 148 g/mol.