3 public questions tagged with this topic.
Cathode: O₂ + 4H⁺ + 4e⁻ → 2H₂O . Moles O₂ = (0.56/22.4) = 0.025 mol , Moles H₂O = 0.025 × 2 = 0.05 mol . Mass = 0.05 × 18 = 0.9 g .
Ref: NCERT Class 12 Chemistry > Chapter 2: Electrochemistry > Topic: Batteries - Primary Secondary and Fuel Cells
Cathode: O₂ + 4H⁺ + 4e⁻ → 2H₂O . Moles O₂ = (0.56/22.4) = 0.025 mol , Moles H₂O = 0.025 × 2 = 0.05 mol . Mass = 0.05 × 18 = 0.9 g .
Ref: NCERT Class 12 Chemistry > Chapter 2: Electrochemistry > Topic: Batteries - Primary Secondary and Fuel Cells
Reaction: CH₄ + 2O₂ → CO₂ + 2H₂O. Moles: CH₄ = 0.5 mol, O₂ = 0.75 mol. O₂ limits at 0.375 mol CH₄. 0.375 mol CH₄ produces 0.75 mol H₂O = 13.5 g.
Ref: NCERT Class 11 Chemistry > Chapter 1: Some Basic Concepts of Chemistry > Topic: Dalton's Atomic Theory and Atomic and Molecular Masses
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