Phosphorus burns as: P₄ + 5O₂ → P₄O₁₀. How many litres of O₂ at STP are needed to oxidize 12.4g of P₄? (P=31, O=16, molar volume=22.4L)

University of Ilorin CHM101 2015 past question

1. 5.20 L
2. 11.20 L
3. 2.24 L
4. 20.20 L

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