Question

A 1000 dm3 sample of the contaminated methane gas burnt at the power station produces 999 dm3 of carbon dioxide and 1 dm3 of sulfur dioxide. All gas volumes are measured at room temperature and pressure.What is the volume of methane, at room temperature and pressure, in the 1000 dm3 of the gas burnt?

Answer 1

$CH_4+2O_2->CO_2+2H_2O$

999 dm³ of CO₂ isformed,so, there must be 999 dm³ of CH₄.So,Volume of CH₄ is 999dm³.