CH-832
Empirical and molecular formulae
Chemistry · Secondary 3 · Hard · Empirical and molecular formulae
A sample of an oxide contains 40% sulfur and 60% oxygen by mass. (Ar: S = 32, O = 16.) What is the empirical formula of the oxide?
- SO₃
- SO₂
- S₂O₃
- S₂O₅
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