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3g of ethane c2h6 on complete combustion gaye 8.8g of co2 and5.4g of water show that the result are in accordance with the law of conservation of mass
6 years ago

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DrBob222
2C2H6 + 7O2 ==> 4CO2 + 6H2O
3............................8.8..........5.4
g O2 needed = 3 x (7 mols H2O/2 mols C2H6) = 10.5g
Is 3 + 10,5 = 8.8 + 5.4. It isn't so the law of conservation of mass is not obeyed.
6 years ago

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