
RIshi G. answered 02/28/23
North Carolina State University Grad For Math and Science Tutoring
When hydrogen gas (H₂) reacts with oxygen gas (O₂) according to the balanced chemical equation:
H₂(g) + O₂(g) → H₂O(l)
one mole of hydrogen gas reacts with one mole of oxygen gas to produce two moles of liquid water. The equation tells us that the ratio of the reactants (H₂ and O₂) is 1:1, and the ratio of the products (H₂O) is 2:1.
Therefore, if we react 1 mole of H₂ with 1 mole of O₂, we will produce 2 moles of H₂O.
If we react a different amount of H₂ and O₂, we can use stoichiometry to determine the amount of H₂O produced. For example, if we react 2 moles of H₂ with 3 moles of O₂, we can use the mole ratios from the balanced equation to find that the limiting reactant is H₂ (since we have an excess of O₂), and we will produce:
2 moles H₂ x (2 moles H₂O / 1 mole H₂) = 4 moles H₂O
So, the amount of H₂O produced depends on the amounts of H₂ and O₂ that react, as long as we follow the mole ratios from the balanced chemical equation.