Calculate how much oxygen is required to burn 2 moles of phosphate

4P + 5O2 = 2P2O5.
1) Determine the amount of oxygen. To do this, consider the reaction equation. For two moles of phosphorus oxide, there are five moles of oxygen. This means that the amount of oxygen is: 2 * 2/5 = 0.8 mol.
2) Find the volume of oxygen. To do this, we multiply the amount of oxygen by the molar volume: 0.8 * 22.4 = 17.92 liters.
Answer: the volume of oxygen in the reaction of burning phosphorus is 17.92 liters.

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