O-LevelChemistryStoichiometry5070/11 · May/June 2023 · Q101 Mark

What has a mass equal to the mass of one mole of water?

A24 dm³ of water at room temperature and pressure

Bone mole of steam at 200 °C and 100 kPa / 1 atm pressure

Cone molecule of water at room temperature and pressure

Dtwo moles of hydrogen molecules and one mole of oxygen molecules

✓ Correct answer

B: one mole of steam at 200 °C and 100 kPa / 1 atm pressure

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Topic: Stoichiometry, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, May/June 2023 Paper 1 Variant 1, question 10.

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