O-LevelChemistryStoichiometry5070/12 · Oct/Nov 2019 · Q71 Mark

Hydrogen sulfide burns in an excess of oxygen according to the equation shown. 2H2S(g) + 3O2(g) → 2H2O(g) + 2SO2(g) 48 dm³ of hydrogen sulfide is burned. Which volume of sulfur dioxide will be formed at room temperature and pressure? [All volumes are measured at the same temperature and pressure.]

A24 dm³

B36 dm³

C48 dm³

D96 dm³

✓ Correct answer

C: 48 dm³

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Topic: Stoichiometry, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2019 Paper 1 Variant 2, question 7.

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