O-LevelChemistryStoichiometry5070/11 · Oct/Nov 2015 · Q111 Mark

The equation shown represents the neutralisation of aqueous sodium hydroxide with dilute sulfuric acid. 2NaOH(aq) + H2SO4(aq) → Na2SO4(aq) + 2H2O(l) How much sulfuric acid is required to neutralise 100 cm³ of 1.0 mol/dm³ NaOH?

A50 cm³ of 2.0 mol/dm³ sulfuric acid

B100 cm³ of 1.0 mol/dm³ sulfuric acid

C25 cm³ of 0.5 mol/dm³ sulfuric acid

D50 cm³ of 1.0 mol/dm³ sulfuric acid

✓ Correct answer

D: 50 cm³ of 1.0 mol/dm³ sulfuric acid

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Topic: Stoichiometry, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2015 Paper 1 Variant 1, question 11.

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