Chemistry · Oct / Nov 2018 · Paper 12 · Question 11
5070The mole and the Avogadro constant
A compound contains 40.0% carbon, 6.7% hydrogen and 53.3% oxygen by mass. The relative molecular mass of the compound is between 55 and 65. What is the molecular formula of the compound?
- ACH2O
- BC2H4O
- CC2H4O2
- DC2H6O2
As printed in the paper
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Correct answer: C. C2H4O2
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