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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.
One mole of any gas occupies at STP a volume of
22.4 mL
24 L
22.4 L
1 L
2.
The standard conditions STP are
25 °C and 1 atm
0 °C and 1 atm
0 °C and 2 atm
273 °C and 1 atm
3.
Equal volumes of different gases at the same temperature and pressure contain equal numbers of
atoms
molecules
grams
electrons only
4.
The molar volume at room temperature and pressure is larger than at STP because
the gas becomes heavier
the gas expands at the higher temperature
the pressure is lower than 1 atm
the number of molecules increases
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