Given the reaction: P4 + 5 O2
2 P205

What is the mole ratio between P4 and O2? What about between P4 and P2O5?

How many grams of P4 would be needed to fully react with 2.5 moles of O2?

You need to create 82.2g of P2O5. What mass (grams) of P4 would be required?

Please show work.

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