In the balanced chemical equation 2H₂ + O₂ → 2H₂O, how many moles of water are produced when 3 moles of hydrogen gas react completely?
According to the balanced equation, 2 moles of Hâ‚‚ produce 2 moles of Hâ‚‚O. Therefore, 3 moles of Hâ‚‚ will produce 3 moles of Hâ‚‚O.
Given the reaction: N₂ + 3H₂ → 2NH₃, how many moles of hydrogen gas are needed to produce 4 moles of ammonia?
According to the balanced equation, 3 moles of H₂ produce 2 moles of NH₃. To produce 4 moles of NH₃, 6 moles of H₂ are required.
In the reaction: 4Fe + 3O₂ → 2Fe₂O₃, what is the mole ratio of iron (Fe) to ferric oxide (Fe₂O₃)?
The balanced equation shows that 4 moles of Fe react to form 2 moles of Fe₂O₃, giving a mole ratio of 4:2, which simplifies to 2:1.
How many grams of CO₂ are produced when 44 grams of propane (C₃H₈) undergo complete combustion according to the equation: C₃H₈ + 5O₂ → 3CO₂ + 4H₂O? (Molar masses: C₃H₈ = 44 g/mol, CO₂ = 44 g/mol)
44 grams of C₃H₈ is 1 mole. The balanced equation shows that 1 mole of C₃H₈ produces 3 moles of CO₂. Therefore, 3 moles of CO₂ weigh 3 x 44 = 132 grams.
If 8 moles of Al react with 3 moles of Fe₂O₃ according to the equation: 2Al + Fe₂O₃ → 2Fe + Al₂O₃, what is the limiting reactant?
According to the balanced equation, 2 moles of Al react with 1 mole of Fe₂O₃. Therefore, 8 moles of Al would require 4 moles of Fe₂O₃. Since there are only 3 moles of Fe₂O₃, Fe₂O₃ is the limiting reactant.