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Reaction: 2CO + O₂ → 2CO₂. Moles: CO ≈ 0.357 mol, O₂ = 0.5 mol. 0.357 mol CO produces 0.357 mol CO₂ = 0.357 × 44 ≈ 15.71 g.
Ref: NCERT Class 11 Chemistry > Chapter 1: Some Basic Concepts of Chemistry > Topic: Stoichiometry and Stoichiometric Calculations and Limiting Reagent
Reaction: CaCO₃ + 2HCl → CaCl₂ + CO₂ + H₂O. Moles of HCl = 2 × 0.05 = 0.1 mol. 0.1 mol HCl needs 0.05 mol CaCO₃ = 0.05 × 100 = 5 g.
Ref: NCERT Class 11 Chemistry > Chapter 1: Some Basic Concepts of Chemistry > Topic: Importance and Nature of Chemistry and Properties of Matter
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