Answer to Question #306680 in Chemistry for Annastacia

Question

8.8 moles of carbon dioxide is formed in CH4+2O2–>CO2+2H2O. How many grams of methane reacted

Answer 1

Solution:

methane = CH₄

carbon dioxide = CO₂

Balanced chemical equation:

CH₄ + 2O₂ → CO₂ + 2H₂O

According to stoichiometry:

1 mol of CH₄ produces 1 mol of CO₂

X mol of CH₄ produces 8.8 mol of CO₂

Therefore,

Moles of CH₄ = X = (8.8 mol CO₂) × (1 mol CH₄ / 1 mol CO₂) = 8.8 mol CH₄

The molar mass of methane (CH₄) is 16 g/mol

Therefore,

Mass of CH₄ = (8.8 mol CH₄) × (16 g CH₄ / 1 mol CH₄) = 140.8 g CH₄

Answer: 140.8 grams of methane (CH₄) reacted