Post-UTME Chemistry 2005 Objective — Question 10
Question 10 of 27 from the Post-UTME Screening (Post-UTME) Chemistry 2005 Objective paper, with the correct answer and a full explanation.
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Which is heavier: 0.2mol SO2 or 0.2mol CO2? [S=32.0, O=16, C=12]
- A. SO2 is heavier by 4gCorrect
- B. CO2 is heavier by 44g
- C. SO2 is heavier by 0.4g
- D. CO2 is heavier by 40g
Explanation
Mass SO2 = 0.2 x 64 = 12.8g. Mass CO2 = 0.2 x 44 = 8.8g. Difference = 4g, with SO2 heavier.
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