Question

how many litres of oxygen is needed to burn completely 2.2gram of propone(c3h8)
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Answer 1

Balanced equation of Combustion of propane is

C3H8 + 5O2 = 3CO2 + 4H2O

At NTP

44g of propane requires 5*22.4L of oxygen for complete combustion

2.2g of propane requires 2.2*5*22.4/44 = 5.6L

So, the volume of oxygen required for complete combustion is 5.6L

Answer 2

Answer:

5.6 L............................