propane reacted completely with oxygen. Mole fraction of in resulting mixture is . Value of is (Nearest integer)

Question

propane reacted completely with  oxygen. Mole fraction of  in resulting mixture is . Value of  is  (Nearest integer)

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Strategy:
 Mole fraction is the ratio of moles of a component to the total moles in the mixture. Calculate the moles of all resulting species (products + excess reactants) using stoichiometric combustion.

Step 1: Calculate moles of reactants
Molar mass of Propane () , Oxygen () .
- Moles .
- Moles .

Step 2: Reaction and Stoichiometry

- Needs  .
- Products: ; .
- Excess .

Step 3: Calculate mole fraction of } \ce{CO2}
Total moles .

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