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

The mass of oxygen required for the complete combustion of 2 moles of ethane (C₂H₆) is

A. 64 g
B. 112 g
C. 224 g
✓
D. 160 g

📝 Explanation

2 moles C₂H₆ require 7 moles O₂. Mass = 7 × 32 = 224 g.

📖 Additional Information

  • 64 g
  • 112 g
  • 224 g
  • 160 g

2 moles C₂H₆ require 7 moles O₂. Mass = 7 × 32 = 224 g.

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