How many moles of P are needed to react with 30.1 of O2?

24.08 moles of phosphorous are needed to react with 30.1 moles of oxygen.

Explanation:

Given dа ta:

Number of moles of O₂ = 30.1 mol

Number of miles of P = ?

Solution:

Chemical equation:

4P + 5O₂ → 2P₂O₅

Now we will compare the moles of phosphorus and oxygen.

O₂ : P

5 : 4

30.1 : 4/5*30.1 = 24.08 mol

So 24.08 moles of phosphorous are needed to react with 30.1 moles of oxygen.