Explanation
Given
[tex]2Al_2O_3\rightarrow4Al_+3O_2[/tex]number of moles of Al = 4.80 mol
Required: Moles of O2
Solution
Use the stoichiometry to calculate the moles of O2
The molar ratio of Al to O2 is 4:3
Therefore moles of O2 = 4.80 x (3/4) = 3.6 mol
Answer
moles of O2 = 3.6 mol
