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Chemistry NMDCAT MCQs Moles and Avogadro's Numbers Moles and Avogadro’s Numbers
nmdcat.online July 13, 2026

Under standard conditions, 89.6 L of oxygen gas corresponds to

A. 2 moles
B. 3 moles
C. 4 moles
✓
D. 5 moles

📝 Explanation

At STP, one mole of gas occupies 22.4 L. Therefore, 89.6 ÷ 22.4 = 4 moles. Concept tested: Gas volume to mole conversion.

📖 Additional Information

  • 2 moles
  • 3 moles
  • 4 moles
  • 5 moles

At STP, one mole of gas occupies 22.4 L. Therefore, 89.6 ÷ 22.4 = 4 moles. Concept tested: Gas volume to mole conversion.

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