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Pearson Edexcel GCSE (9-1) Chemistry practice

A pure sample of an unknown compound is found to contain 60.0% carbon, 13.3% hydrogen, and 26.7% oxygen by mass. What is its empirical formula? (Relative atomic masses: C=12.0, H=1.0, O=16.0)

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A pure sample of an unknown compound is found to contain 60.0% carbon, 13.3% hydrogen, and 26.7% oxygen by mass. What is its empirical formula? (Relative atomic masses: C=12.0, H=1.0, O=16.0).

  1. A.C2H4O
  2. B.C3H8O
  3. C.CH3O
  4. D.C4H10O2

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A pure sample of an unknown compound is found to contain 60.0% carbon, 13.3% hydrogen, and 26.7% oxygen by mass. What is its empirical formula? (Relative atomic masses: C=12.0, H=1 | ExamCompanion