In the reaction between 10 g of hydrogen and 10 g of oxygen, what is the mass of water produced?
- 20 g
- 11.25 g
- 18 g
- 10 g
📝 Detailed explanation
2H₂ + O₂ → 2H₂O.Moles H₂ = 10 / 2 = 5 mol.
Moles O₂ = 10 / 32 = 0.3125 mol.
O₂ is the limiting reagent.
Moles H₂O = 0.3125 × 2 = 0.625 mol.
Mass H₂O = 0.625 × 18 = 11.25 g.