For the reaction CH4 + 2O2 --> CO2 + 2H2O, how many moles of water are produced alongside 100g of carbon dioxide?

Answer 1

The stoichiometry is (100g CO₂) * (1 mol CO₂ / 44.0g CO₂) * (2 mol H₂O / 1 mol CO₂) = 4.55 mol H₂O. (The latter term comes from the mole ratio in the balanced reaction)