Lesson Plan: Titration Experiments Chemistry
This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to describe acid–base titration methods and their use in determining acid and base concentrations.
Objectives
Students will be able to
- describe the key steps in performing an acid–base titration,
- describe and understand the experimental equipment used for performing an acid–base titration,
- describe the key steps in preparing standard solutions for acid–base titrations,
- identify suitable indicators by determining the equivalence points in plotted or tabulated pH data,
- identify problems with described titration experiments (e.g., indicator pH range is too high/low/wide, color change is indistinct, and emergence of color is hard to detect so titration must be designed to detect loss of color instead (phenolphthalein)),
- identify hazards encountered during titrations (e.g., splashing of analyte at eye level and tipping of buret).
Prerequisites
Students should already be familiar with
- acidity and basicity,
- neutralization reactions,
- the pH scale.
Exclusions
Students will not cover
- titration calculations (e.g., using ); these are included in another lesson,
- calculating pH.
