Chemistry 0620 · IGCSE · Acid–base titrations

Acid–base titrations — practice question

A description of an acid-base titration is given. • $25.0\,\text{cm}^3$ of dilute aqueous alkali is placed in a conical flask. • An indicator is then added to the flask. • Dilute acid is added to the aqueous alkali until a colour change occurs in the indicator. • The volume of acid used is then measured and recorded. Which way of using apparatus is correct?

  • AThe $25.0\,\text{cm}^3$ of aqueous alkali is measured using a volumetric pipette.
  • BThe $25.0\,\text{cm}^3$ of aqueous alkali is measured using the lines on the conical flask.
  • CThe volume of acid is measured using a measuring cylinder.
  • DThe volume of acid is measured using a volumetric pipette.

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