How many moles of oxygen are produce dif 11.0 mol of al are produced

8.25 moles

Explanation:

Given parameters:

Number of moles of Al produced = 11 moles

Unknown:

Number of moles of oxygen produced = ?

Solution:

To solve this problem, we need to understand the problem.

The decomposition of an aluminium oxide must has produced oxygen and aluminium,

              2Al₂O₃   →  4Al  + 3O₂

now since the known is the oxygen gas; we can find the unknown aluminium:

                3 mole of O₂ was produced with 4 mole of Al

               x mole of O₂ will be produced with 11 moles of Al

 x  =  = 8.25 moles

where are the choice options?