ChemistryChemical combinationJAMB
The empirical formula of a compound containing 40% carbon, 6.7% hydrogen and 53.3% oxygen by mass is: (C = 12, H = 1, O = 16)
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Answer: C. CH₂O
Mole ratio C:H:O = 40/12 : 6.7/1 : 53.3/16 ≈ 3.33 : 6.7 : 3.33 = 1 : 2 : 1.
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