1. Find the atomic masses of each element:
* Nitrogen (N): 14.01 g/mol
* Oxygen (O): 16.00 g/mol
2. Multiply the atomic mass of each element by its subscript in the formula:
* Nitrogen (N): 2 atoms * 14.01 g/mol/atom = 28.02 g/mol
* Oxygen (O): 5 atoms * 16.00 g/mol/atom = 80.00 g/mol
3. Add the results together:
* 28.02 g/mol + 80.00 g/mol = 108.02 g/mol
Therefore, the molar mass of dinitrogen pentoxide (N₂O₅) is 108.02 g/mol.
