What mass of carbon dioxide is produced from the complete combustion of 5.90×10−3 g of methane? Express your answer with the appropriate units.

Question

When methane (CH4CH4) burns, it reacts with oxygen gas to produce carbon dioxide and water. The unbalanced equation for this reaction is

CH4(g)+O2(g)→CO2(g)+H2O(g)

Answer 1

Methane = CH4

Combustion of methane:

CH₄ + 2O₂ ==> CO₂ + 2H₂O ... balanced equation

mols CH₄ present = 5.90x10^-3 g x 1 mol / 16 g = 3.69x10^-4 mols

mass CO₂ produced = 3.69x10^-4 mols CH₄ x 1 mol CO₂ / mol CH₄ x 44 g CO₂ / mol = 0.0162 g CO₂ produced