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Chemistry · May / June 2023 · Paper 12 · Question 38

5070Acid–base titrations

25.0 cm³ of 1.0 mol / dm³ sodium hydroxide is titrated with dilute sulfuric acid, using a suitable indicator. 25.0 cm³ of the sulfuric acid is required to reach the end-point. What is the concentration of the sulfuric acid and which indicator is used?

  1. A0.5 methyl orange
  2. B0.5 universal indicator
  3. C2.0 methyl orange
  4. D2.0 universal indicator

As printed in the paper

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Correct answer: A. 0.5 methyl orange

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