Given the following reaction:
4 KO2 + 2 H2O + 4 CO2 ==> 4 KHCO3 + 3 O2
How many moles of O2 will be produced if 3.27 moles of CO2 react completely?
You can convert mols of anything in an equation to mols of anything else in that equation by using the coefficients in the balanced equation. It works just like dimensional analysis.
3.27 mols CO2 x (3 mols O2/4 mols CO2) = 3.27 x 3/4 = ?
To determine how many moles of O2 will be produced if 3.27 moles of CO2 react completely, we need to use the stoichiometric coefficients from the balanced chemical equation.
Let's analyze the coefficients for CO2 and O2 in the balanced equation:
4 KO2 + 2 H2O + 4 CO2 ==> 4 KHCO3 + 3 O2
According to the coefficients, for every 4 moles of CO2, 3 moles of O2 are produced.
So, to find the number of moles of O2 produced when 3.27 moles of CO2 react, we use the following calculation:
Moles of O2 = (Moles of CO2 × Coefficient of O2) ÷ Coefficient of CO2
Moles of O2 = (3.27 mol CO2 × 3 mol O2) ÷ 4 mol CO2
Moles of O2 = (3.27 mol × 3) ÷ 4
Moles of O2 = 9.81 ÷ 4
Moles of O2 ≈ 2.453 mol
Therefore, approximately 2.453 moles of O2 will be produced when 3.27 moles of CO2 react completely.