Chemistrymedium · Past Paper
What is the percentage of Oxygen in CO2? (C=12, O=16)
A27.27%
B72.73%
C50%
D44%
✓ Correct Answer: B — 72.73%
Mass of O2 = 32. Total mass = 44. (32/44)*100 = 72.73%.
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✓ Correct Answer: B — 72.73%
Mass of O2 = 32. Total mass = 44. (32/44)*100 = 72.73%.
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