Turn concentration into a concept you can calculate, convert, prepare, and apply with confidence. This 75-minute IB DP Chemistry HL lesson on Molar Concentration (Structure 1.4) takes students from the basics of (c=n/V) to real laboratory applications.

Students explore mol dm⁻³ and g dm⁻³, use relatable analogies to understand concentration and molar mass conversions, practise calculation-based problems, and investigate how accuracy, precision, and uncertainty influence the choice of laboratory glassware. The lesson also covers standard and stock solutions, serial dilution, ppm, calibration curves, and titration.

With a See–Think–Wonder starter, worked examples, practical procedures, quick checks, exam-style questions, and Connect–Extend–Challenge reflection, this resource is designed to make a traditionally calculation-heavy topic engaging, visual, and application-focused.