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Chemistry · Oct / Nov 2021 · Paper 12 · Question 1

5070Acid–base titrations

In a titration, 25.0 cm$^3$ of aqueous sodium hydroxide is transferred into a conical flask. A few drops of indicator are added. Dilute hydrochloric acid is then added to the flask until the end-point is reached. Which pieces of apparatus are used to measure volume in this experiment?

  1. Ato measure dilute hydrochloric acid: burette; to measure aqueous sodium hydroxide: beaker
  2. Bto measure dilute hydrochloric acid: burette; to measure aqueous sodium hydroxide: pipette
  3. Cto measure dilute hydrochloric acid: pipette; to measure aqueous sodium hydroxide: pipette
  4. Dto measure dilute hydrochloric acid: pipette; to measure aqueous sodium hydroxide: beaker

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Correct answer: B. to measure dilute hydrochloric acid: burette; to measure aqueous sodium hydroxide: pipette

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