Calculate the mass of phosphorus (V) oxide, which will be obtained by burning 93 grams of phosphorus

Calculate the mass of phosphorus (V) oxide, which will be obtained by burning 93 grams of phosphorus. Calculate the mass of oxygen that will be required for this reaction.

1. Let’s write the reaction equation:
4P + 5O2 = 2P2O5;
2.Calculate the chemical amount of phosphorus:
n (P) = m (P): M (P) = 93: 31 = 3 mol;
3.determine the amount of phosphorus oxide (5):
n (P2O5) = n (P): 2 = 3: 2 = 1.5 mol;
4.Calculate the mass of P2O5:
m (P2O5) = n (P2O5) * M (P2O5);
M (P2O5) = 2 * 31 + 5 * 16 = 142 g / mol;
m (P2O5) = 1.5 * 142 = 213 g.
Answer: 213