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Chemistry NMDCAT MCQs Moles and Avogadro's Numbers
nmdcat.online July 2, 2026

The number of representative particles (molecules) present in 88 g of carbon dioxide (CO₂) is (Molar mass of CO₂ = 44 g/mol)

A. 6.022 × 10²³
B. 1.2044 × 10²⁴
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C. 3.011 × 10²³
D. 2.4088 × 10²⁴

📝 Explanation

Moles of CO₂ = 88 ÷ 44 = 2.0 moles. Molecules = 2.0 × 6.022 × 10²³ = 1.2044 × 10²⁴.

📖 Additional Information

  • 6.022 × 10²³
  • 1.2044 × 10²⁴
  • 3.011 × 10²³
  • 2.4088 × 10²⁴

Moles of CO₂ = 88 ÷ 44 = 2.0 moles. Molecules = 2.0 × 6.022 × 10²³ = 1.2044 × 10²⁴.

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