Question

How many moles of carbon dioxide are produced from the reaction of oxygen with four moles of propane (C3H8)? C3H8 + 502 —> 3CO2 + 4H2O

Answer 1

Using the stoichiometric ratio from the balanced chemical equation for the combustion of propane (3 moles CO2 per 1 mole C3H8), 12 moles of carbon dioxide are produced from four moles of propane.

Step-by-step explanation:

The question asks about the number of moles of carbon dioxide produced from the reaction of oxygen with four moles of propane (C3H8). The balanced chemical equation provided is:

C3H8 + 5O2 → 3CO2 + 4H2O

To find the number of moles of CO2 produced, we use the stoichiometric ratio from the equation, which shows that for each mole of propane combusted, there are three moles of carbon dioxide produced. Since the reaction involves four moles of propane, we simply multiply this stoichiometric ratio by the four moles of propane given:

(3 moles CO2 / 1 mole C3H8) × 4 moles C3H8 = 12 moles CO2

Therefore, 12 moles of carbon dioxide are produced from the combustion of four moles of propane.

Answer 2

12 moles

Step-by-step explanation:

1. Do comparison

From the equation, 1 mole of C3H8 yields 3 moles of CO2

Therefore, 4 moles of C3H8 should yield 12 moles of CO2

Steps:

Number of moles of CO2

= (1 mol x 4) x 3

= 12 moles