Answer :
The balanced chemical equation for the reaction of hydrogen gas and oxygen gas to form water is:
2 H2(g) + O2(g) → 2 H2O(g)
According to the stoichiometry of the reaction, 2 moles of hydrogen react with 1 mole of oxygen to form 2 moles of water.
To determine the limiting reactant, we can compare the amount of each reactant to the stoichiometric ratio. Since we have 5.00 mol of both hydrogen and oxygen, we can calculate the moles of water produced from each reactant:
Hydrogen: 5.00 mol H2 × (2 mol H2O / 2 mol H2) = 5.00 mol H2O
Oxygen: 5.00 mol O2 × (2 mol H2O / 1 mol O2) = 10.00 mol H2O
From the calculations above, we can see that oxygen is the limiting reactant because it produces less moles of water than hydrogen. Therefore, the number of moles of steam produced is 10.00 moles (2 × 5.00 moles of water).
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