Stoichiometry worksheet featuring problems on mole ratios and chemical reactions involving KClO3 and Fe.

1. 1.65 mol KClO₃ | 3 mol O₂ / 2 mol KClO₃ | = 2.475 mol O₂
2. 3.50 mol KCl | 2 mol KClO₃ / 2 mol KCl | = 3.50 mol KClO₃
3. 2.73 mol KClO₃ | 2 mol KCl / 2 mol KClO₃ | = 2.73 mol KCl
4. 0.275 mol Fe | 2 mol Fe₂O₃ / 4 mol Fe | = 0.1375 mol Fe₂O₃
5. 31.0 mol O₂ | 2 mol Fe₂O₃ / 3 mol O₂ | = 20.67 mol Fe₂O₃
6. 8.9 mol Fe | 3 mol O₂ / 4 mol Fe | = 6.675 mol O₂