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How many litres of oxygen at STP are required for combustion of 4gm of ethylene?
Science & Mathematics by Anonymous 2018-05-25 11:05:13
Social Science
How many litres of oxygen at STP are required for combustion of 4gm of ethylene?
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Please Elaborate
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Anonymous
Seems no one uses the Law of definite composition. C2H4 + 3O2 --> 2CO2 + 2H2O molar mass C2H4 = 28 ... 3 mole O2 at STP = 3(22.4) = 67.2L 4 / 28 = x/67.2 x = 67.2L / 7 = 9.6L