CH-820
Empirical and molecular formulae
Chemistry · Secondary 3 · Hard · Empirical and molecular formulae
A sample of glass contains 40% silicon and 60% oxygen by mass. What is the empirical formula of this glass?
(Relative atomic masses: Si = 28, O = 16)
(Relative atomic masses: Si = 28, O = 16)
- SiO₂
- Si₂O₃
- Si₂O₅
- SiO₃
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