Question

What is the mole ratio between P4 and O2?

A) 4:5
B) 5:4
C) 1:2
D) 2:1

Answer 1

The mole ratio between P4 and O2, according to the provided balanced chemical equation P4 (s) + 5O2 (g) → 2P2O5 (s), is 1:5.

Step-by-step explanation:

The mole ratio between P4 and O2 is determined by looking at the balanced chemical equation provided. In the synthesis reaction:
(a) P4 (s) + 5O2 (g) → 2P2O5 (s)
for each molecule of phosphorus tetramer (P4), five molecules of oxygen (O2) are used. Therefore, the mole ratio of P4 to O2 is 1:5.