Consider the following reaction:
2 SO₂(g) + O₂(g) → 2 SO₃(g)
At 345 K and 75.0 mmHg, 265.3 mL of SO₃ were collected when 305.2 mL of SO₂ and 176.4 mL of O₂ reacted. What is the percent yield of the reaction?

• A. 86.93%
• B. 75.20%
• C. 68.23%
• D. 53.25%

Answer: (A)