First slide
Stoichiometry and Stoichiometric Calculations
Question

At 298 K, 10 ml of methane is subjected to combustion with 40 ml of oxygen. The volume of gases left after the reaction will be

Moderate
Solution

CH4g + 2O2g  CO2g + 2H2Ol ; 10ml          20ml          10ml  Volume of oxygen remain unused=40ml-20ml; Volume of carbon dioxide formed=10ml; Total volume of gases after the reaction=30ml

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