CH-822
Empirical and molecular formulae
Chemistry · Secondary 3 · Hard · Empirical and molecular formulae
A compound contains 27.3% carbon and 72.7% oxygen by mass. What is its empirical formula?
(Relative atomic masses: C = 12, O = 16)
(Relative atomic masses: C = 12, O = 16)
- CO
- CO₂
- C₂O
- C₂O₃
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