1. Identify the elements and their atomic masses:
* Nitrogen (N): 14.01 g/mol
* Hydrogen (H): 1.01 g/mol
* Oxygen (O): 16.00 g/mol
2. Count the number of atoms of each element in the formula:
* Nitrogen (N): 2
* Hydrogen (H): 4
* Oxygen (O): 3
3. Multiply the atomic mass of each element by the number of atoms of that element:
* Nitrogen: 14.01 g/mol * 2 = 28.02 g/mol
* Hydrogen: 1.01 g/mol * 4 = 4.04 g/mol
* Oxygen: 16.00 g/mol * 3 = 48.00 g/mol
4. Add up the masses of all the elements:
* 28.02 g/mol + 4.04 g/mol + 48.00 g/mol = 80.06 g/mol
Therefore, the molar mass of ammonium nitrate (NH₄NO₃) is 80.06 g/mol.
