Question

In the reaction given below, for every four moles of aluminum oxide consumed, how many moles of oxygen are produced? 2 Al2O3 → 4 Al + 3 O2

Answer 1

The answer to your question is 6 moles

Step-by-step explanation:

Reaction

2Al₂O₃ ⇒ 4 Al + 3O₂

Check if the reaction is balanced

Reactants Elements Products

4 Aluminum 4

6 Oxygen 6

The number of reactants and products is the same so this reaction is balanced.

We know that for every 2 moles of aluminum oxide consumed 3 moles of oxygen are consumed so we use proportions to find the answer

2 moles of Al₂O₃ ----------- 3 moles of Oxygen

4 moles of Al₂O₃ ----------- x

x = (4 x 3) / 2

x = 12/2

x = 6 moles of oxygen