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Tag: IA chemistry
The Winkler method is a widely used analytical technique for determining the amount of dissolved oxygen in water samples. Dissolved oxygen is essential for aquatic life and is an important indicator of water quality. The Winkler method involves the addition of reagents to a water sample that react with dissolved oxygen to produce a measurable … Continue reading The Winkler Method – Biological Oxygen Demand BOD
The Internal Assessment (IA) for Chemistry in the International Baccalaureate Diploma Programme (IBDP) is an experimental investigation that requires students to demonstrate their ability to design and conduct experiments, analyze data, and draw conclusions. Here is a plan for a Chemistry IA:Topic Selection: Choose a topic that interests you and aligns with your learning objectives. … Continue reading How to write the perfect Chemistry Internal Assessment (IA)
Chemical synthesis of aspirin Aspirin, also known as acetylsalicylic acid, can be synthesized through a process called esterification. Here are the steps for the chemical synthesis of aspirin: Materials needed: Salicylic acid (2-hydroxybenzoic acid) Acetic anhydride Sulfuric acid Water Sodium bicarbonate Ice Instructions: In a flask, mix 10 g of salicylic acid with 20 mL … Continue reading Aspirin Synthesis
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