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Practice question

MCQ

Question

What is the mass of 2 × 10²³ molecules of N₂O? (Molar mass = 44 g/mol, Avogadro number = 6 × 10²³)

Options

Choose one · Correct answer highlighted

Explanation

Given: What is the mass of 2 × 10²³ molecules of N₂O? (Molar mass = 44 g/mol, Avogadro number = 6 × 10²³) Formula: Moles = 2 × 10²³ / 6 × 10²³ ≈ 0.3333 mol. Substitution & Calculation: Mass = 0.3333 × 44 ≈ 14.67 g ≈ 14.7 g. Final Result: The computed value matches expected outcome and confirms correct choice as per latest NCERT 2026-27.

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