General Chemistry

Question

The combustion of propane C₃H₈ is shown below

C₃H₈(g)  +  5O₂(g) →  3CO₂(g)  +  4H₂O(g) 

If this reaction was performed with 3 moles of propane and 10 moles of oxygen, calculate the moles of CO₂ produced.

Answer 1

6 moles CO2. Since 02 is the limiting reagent in this case, and twice as many oxygens are reacted in the question stem compared to the coefficient in the equation, twice the CO2 from the molecular equation will form, so 6 moles will form.