🤓 Based on our data, we think this question is relevant for Professor Pizzati's class at USC.
Solution: Calculate the mass of hydrogen and the mass of oxygen required to make 250 L of water assuming the reaction goes to completion (i.e. 100% yield). The molar mass of water is 18.013 g/mol.
2 H2 (g) + O2 (g) → 2 H 2O (/)