The molar mass of Mg(NO₃)₂, also known as magnesium nitrate, is calculated by adding the atomic masses of all the atoms in the compound. Here’s how it’s done:
- Magnesium (Mg): 1 atom × 24.305 g/mol = 24.305 g/mol
- Nitrogen (N): 2 atoms × 14.007 g/mol = 28.014 g/mol
- Oxygen (O): 6 atoms × 15.999 g/mol = 95.994 g/mol
Adding these together:
24.305 g/mol (Mg) + 28.014 g/mol (N) + 95.994 g/mol (O) = 148.313 g/mol
Therefore, the molar mass of Mg(NO₃)₂ is 148.313 g/mol.