How many grams of carbon dioxide are formed when 10.0 grams of propane completely combusts in oxygen

Question

Round to 2 decimal places

Answer 1

Hi Emily,

We need to balance the chemical equation, as shown below:

C₃H₈ + 5O₂ -> 3CO₂ + 4H₂O

For every mole of Propane that combusts in oxygen, 3 moles of Carbon Dioxide are produced (1:3 relationship)

Moles of Propane = Mass / Molar Mass -> 10.0 / 44 = 0.227 moles

Moles of Carbon Dioxide = 0.227 *3 = 0.681 moles

Mass of Carbon Dioxide = 0.681 * 44 = 29.964 grams

Message me if you need further clarification on that.

Anouk