May/June 2026 Paper 23

2026 · 40 questions · 40 parts · 40 marks

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12Concentration Solutions Titration CalculationsHard1 mark
The equation for the reaction of dilute sulfuric acid and aqueous sodium hydroxide is shown.
25.0 cm of aqueous sodium hydroxide is measured into a conical flask. 12.5 cm of 0.100 mol / dm sulfuric acid is needed to completely react with the aqueous sodium hydroxide. What is the concentration of the aqueous sodium hydroxide?