In the reaction H₂ + Cl₂ → 2HCl, how many grams of HCl are produced from 2 grams of H₂ reacting with excess Cl₂? (Ar: H=1, Cl=35.5)

  1. 36.5 g
  2. 73.0 g
  3. 18.25 g
  4. 2.0 g

📝 Batafsil tushuntirish

Moles of H₂ = 2g / 2g/mol = 1 mol. Stoichiometry shows 1 mol H₂ produces 2 mol HCl. Mass of HCl = 2 mol * 36.5 g/mol = 73.0 g.
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