Stoichiometry.....

Question

1 C₃H₈(g) + 5 O₂(g) → 3 CO₂(g) + 4 H₂O(g) Write out all the steps to solve the following problem. 14 moles of O₂ are used to react with propane gas. How many moles of Carbon Dioxide is produced? Your answer should be in the format.

Answer 1

Good news. A moles-to-moles problems requires only one step.

14 mol O₂ X 3 mol CO₂ / 5 mol O₂ = 8.4 mol CO₂

In a moles-to-moles stoichiometry problem, the relevant coefficients in the balanced equation are used. The balanced equation shows us that 3 moles of carbon dioxide are produced for every 5 moles of oxygen gas that react. Therefore, to solve the problem, we should multiply the given 14 moles of oxygen gas by the ratio of 3 moles of carbon dioxide to 5 moles of oxygen gas shown in the balanced equation.