Answer:
The multiplier is 3
Step-by-step explanation:
For this problem, we need to find an integer for the number of moles of oxygen. Let's see the results by multiplying 2.33 and 2, 3, 4:
2.33 mol · 2 = 4.66 moles.
2.33 mol · 3 = 6.99 moles ≈ 7 moles.
2.33 mol · 4 = 9.32 moles.
You can note that if we multiply 2.33 moles by three (3), we obtain an integer of the number of moles.