The reactants are in the exact stoichiometric ratio. Four moles NH₃ = 68 g are produced.
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A reaction mixture contains 5 moles of CO and 2 moles of O₂ reacting to form CO₂ (2CO + O₂ → 2CO₂). The number of moles of CO₂ formed and excess reactant remaining are
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26. In the Haber process, N₂ + 3H₂ → 2NH₃, a mixture of 56 g of N₂ and 12 g of H₂ is used. The maximum mass of ammonia formed is (N = 14, H = 1)