Required practical 1: make up a volumetric solution and carry out a simple acid-base titration.

In the subtopic AS required practical activities, this AQA A-Level Chemistry 7405 learning objective focuses on required practical 1: make up a volumetric solution and carry out a simple acid-base titration. It belongs to AS practical skills and required practical activities, so revision should stay anchored to this exact subtopic rather than drifting into a generic GCSE-level chemistry summary. Approved keywords to use include required practical, titration. Acid-base titration. means a quantitative chemical analysis method to determine the concentration of an acid or base by neutralizing it with a standard solution Avoid the mistake of students often think the colour change in an indicator is the exact point where the acid and base are stoichiometrically equivalent, rather than the point where the indicator changes colour; instead, explain that the colour change occurs slightly after the equivalence point; the true end‑point is where the pH has reached the indicator’s transition range, which is close to but not exactly the stoichiometric equivalence. Use the pH‑titration curve to show the inflection point and the indicator’s colour change range to illustrate the difference For exam answers, practice making up volumetric solutions accurately and performing titrations to determine concentrations