Chemistry
1250 cc of oxygen was burnt with 300 cc of ethane [C2H6]. Calculate the volume of unused oxygen and the volume of carbon dioxide formed:
2C2H6 + 7O2 ⟶ 4CO2 + 6H2O
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Answer
[By Gay Lussac's law]
2 Vol. of C2H6 requires 7 Vol. of oxygen
∴ 300 cc C2H6 will require x 300
= 1050 cc of Oxygen
Hence, unused oxygen = 1250 - 1050 = 200 cc
Similarly,
2 Vol. of C2H6 produces 4 Vol. of carbon dioxide
∴ 300 cc C2H6 produces x 300
= 600 cc of Carbon dioxide
Hence, carbon dioxide produced = 600 cc.
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