Pearson Edexcel GCSE (9-1) Chemistry practice

A compound contains 27.3% carbon and 72.7% oxygen by mass. What is its empirical formula? (Relative atomic masses: C = 12, O = 16)

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Key concepts in chemistry

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A compound contains 27.3% carbon and 72.7% oxygen by mass. What is its empirical formula? (Relative atomic masses: C = 12, O = 16).

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