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)
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36.5 g
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73.0 g
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18.25 g
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2.0 g
📝 Detailed explanation
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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