5 public questions tagged with this topic.
Reaction: N₂ + 3H₂ → 2NH₃. Moles of H₂ = 3 mol. 1 mol N₂ needs 3 mol H₂; 3 mol H₂ needs 1 mol N₂ = 28 g.
Ref: NCERT Class 11 Chemistry > Chapter 1: Some Basic Concepts of Chemistry > Topic: Stoichiometry and Stoichiometric Calculations and Limiting Reagent
Reaction: 2SO₂ + O₂ → 2SO₃. Moles: SO₂ = 0.25 mol, O₂ = 0.25 mol. 0.25 mol SO₂ produces 0.25 mol SO₃ = 0.25 × 80 = 20 g.
Ref: NCERT Class 11 Chemistry > Chapter 1: Some Basic Concepts of Chemistry > Topic: Stoichiometry and Stoichiometric Calculations and Limiting Reagent
Reaction: Fe + 2HCl → FeCl₂ + H₂. Moles of Fe = 11.2/56 = 0.2 mol. 1 mol Fe produces 1 mol FeCl₂; mass = 0.2 × 126.5 = 25.3 g.
Ref: NCERT Class 11 Chemistry > Chapter 1: Some Basic Concepts of Chemistry > Topic: Dalton's Atomic Theory and Atomic and Molecular Masses
Reaction: 2 H₂ + O₂ → 2 H₂O. Moles: H₂ = 8/2 = 4 mol, O₂ = 32/32 = 1 mol. 2 mol H₂ need 1 mol O₂; 1 mol O₂ limits, reacts with 2 mol H₂. 2 mol H₂O formed = 2 × 18 = 36 g.
Ref: NCERT Class 11 Chemistry > Chapter 1: Some Basic Concepts of Chemistry > Topic: Dalton's Atomic Theory and Atomic and Molecular Masses
Reaction: C + O₂ → CO₂. Moles: C = 12/12 = 1 mol, O₂ = 48/32 = 1.5 mol. 1 mol C needs 1 mol O₂; 1 mol C reacts (limited by C). 1 mol CO₂ formed = 1 × 44 = 44 g.
Ref: NCERT Class 11 Chemistry > Chapter 1: Some Basic Concepts of Chemistry > Topic: Dalton's Atomic Theory and Atomic and Molecular Masses
