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12. The combustion of propane (C3H8) occurs accor
pane (C3H8) occurs according to the following chemical equation:
C3H3 (g) + 502 (g) → 3C02 (g) + 4H20 (g)
If 901 moles of C3Hg are burned, how many moles of CO2 are formed?

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Answer:

2703 moles

Explanation:

We are given;

  • The equation for the reaction;

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

  • Moles of C₃H₈ are 901 moles

We are required to calculate the number of moles of COâ‚‚ formed.

  • From the equation, 1 mole of propane reacts with 5 moles of oxygen to form 3 moles of COâ‚‚ and 4 moles of water.
  • Therefore, the mole ratio of C₃H₈ to COâ‚‚ is 1 : 3

Thus; moles of CO₂ = Moles of C₃H₈ × 3

                                 = 901 moles × 3

                                 = 2703 moles

Thus, moles of COâ‚‚ formed will be 2703 moles

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