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Chemistry — Second Secondary

Chemistry — Second Secondary

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Chemistry — Second Secondary 2026/2027

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Quiz

Question bank: Chapter 1 — Chemical Calculation

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1.
The volume at STP of 3.2 g of oxygen gas is
2.24 L
4.48 L
22.4 L
0.224 L
2.
A gas has a mass of 3.5 g and a volume of 2.8 L at STP. Its molar mass is
14 g/mol
28 g/mol
32 g/mol
44 g/mol
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