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Problem: In an industrial Haber's process reactor, 50 moles of hydrogen gas are completely reacted with excess nitrogen gas. Calculate the total number of moles of ammonia gas produced. Step 1: Write the balanced chemical equation for Haber's process: N2 + 3H2 -> 2NH3. Step 2: Identify the stoichiometric mole ratio between hydrogen gas and ammonia from the balanced equation. According to the equation, 3 moles of H2 produce 2 moles of NH3. Step 3: Set up a proportion using the given 50 moles of H2. Moles of NH3 = (50 moles of H2) * (2 moles of NH3 / 3 moles of H2). Step 4: Calculate the final value. Moles of NH3 = 100 / 3 = 33.33 moles of ammonia gas.