Question

How many moles of o2 are required for the complete combustion of one mole of propane?

Answer 1

I don't know whether you know how to balance the equation, but after balancing the equation, it should be something like this:

C4H10 + 6.5 O2 → 4 CO2 + 5 H2O.

Each mole of butane needs 6.5 moles of oxygen, so 13 moles of oxygen is required for 2 moles of butane in a complete combustion.

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Answer 2

C3H8 + 5O2 –––––› 3CO2 + 4H2O

According to Stoichiometry Relationship

We can write this as

1 moles of propone react with 5 moles of oxygen to produce 3 moles of carbon dioxide and 4 moles of water.

So,

5 moles of O2 required for the complete combustion of one mole of propane.

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