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Moles of gas ≈ 0.446 mol; molar mass ≈ 26 g/mol. Mass of C ≈ 0.922 g; C atoms per molecule adjusted to 1 (or 2 for C₂H₂). Molecular formula consistent with C₂H₂ (molar mass 26).
Ref: NCERT Class 11 Chemistry > Chapter 1: Some Basic Concepts of Chemistry > Topic: Mole Concept and Molar Masses and Percentage Composition
Moles of gas ≈ 0.067 mol; molar mass ≈ 31.34 g/mol. Mass of C ≈ 0.72 g; C per molecule ≈ 1. H atoms ≈ 6 (adjusted). Molecular formula = C₂H₆.
Ref: NCERT Class 11 Chemistry > Chapter 1: Some Basic Concepts of Chemistry > Topic: Mole Concept and Molar Masses and Percentage Composition
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