CH-963
Relative atomic and molecular mass
Chemistry · Secondary 3 · Medium · Relative atomic and molecular mass
A compound has the formula CHO. What is the percentage by mass of oxygen in this compound?
(Relative atomic masses: C = 12, H = 1, O = 16.)
(Relative atomic masses: C = 12, H = 1, O = 16.)
- 21.7 %
- 26.1 %
- 34.8 %
- 65.2 %
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