AP Chemistrymediummcq1 pt
What mass of CO₂ forms when 8.0 g of CH₄ burns completely? (CH₄ = 16 g/mol, CO₂ = 44 g/mol)
A.22 g
B.11 g
C.44 g
D.8.0 g
Explanation
Core Concept
CH₄ + 2O₂ → CO₂ + 2H₂O is 1:1. Moles CH₄ = 8.0 ÷ 16 = 0.50 mol, so 0.50 mol CO₂ × 44 g/mol = 22 g.
Correct Answer
A22 g
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