Tag: IA chemistry

The Winkler Method – Biological Oxygen Demand BOD

The Winkler Method – Biological Oxygen Demand BOD

Winkler method: measure dissolved oxygen in water samples and calculate biological oxygen demand (BOD). IB and A-level redox titration practical with full method.

Aspirin Synthesis: Esterification Practical

Aspirin Synthesis: Esterification Practical

Synthesise aspirin (acetylsalicylic acid) through esterification of salicylic acid and acetic anhydride. IB and A-level organic chemistry practical with method.