A-LevelChemistryAtoms, molecules and stoichiometry9701/12 · May/June 2018 · Q41 Mark

Compound J burns in excess oxygen to give carbon dioxide and water only. When a 3.00 g sample of compound J is burnt in excess oxygen, 4.40 g of carbon dioxide and 1.80 g of water are formed. What is the empirical formula of J?

ACH

BCHO

CCH2

DCH2O

✓ Correct answer

D: CH2O

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Topic: Atoms, molecules and stoichiometry, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, May/June 2018 Paper 1 Variant 2, question 4.

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Compound J burns in excess oxygen to give carbon dioxide and water only. When a 3.00 g sample of compound J is burnt in excess oxygen, 4.40 g of carbon dioxide and 1.80 g of water are formed. What is the empirical formula of J?

✓ Correct answer

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