1. Identify the elements and their atomic masses:
* Iron (Fe): 55.845 g/mol
* Sulfur (S): 32.065 g/mol
* Oxygen (O): 15.9994 g/mol
2. Determine the number of atoms of each element:
* Fe: 1 atom
* S: 1 atom
* O: 4 atoms
3. Calculate the total mass:
* (1 * 55.845 g/mol) + (1 * 32.065 g/mol) + (4 * 15.9994 g/mol) = 151.908 g/mol
Therefore, the mass of one mole of iron sulfate (FeSO₄) is 151.908 g/mol.
