1. Convert Masses to Moles
* Cobalt (Co): 0.884 g Co / 58.93 g/mol Co = 0.0150 mol Co
* Sulfur (S): 0.482 g S / 32.07 g/mol S = 0.0150 mol S
* Oxygen (O): 0.720 g O / 16.00 g/mol O = 0.0450 mol O
2. Find the Mole Ratio
Divide each of the mole values by the smallest mole value (0.0150 mol):
* Co: 0.0150 mol / 0.0150 mol = 1
* S: 0.0150 mol / 0.0150 mol = 1
* O: 0.0450 mol / 0.0150 mol = 3
3. Write the Simplest Formula
The simplest formula (empirical formula) is CoSO₃.
