Chapter Name: Chemical Reactions and Equations
Activity Name: Heating of Lead nitrate in Chemical Reactions and Equations
This experiment involves heating lead nitrate in a boiling test tube, leading to its decomposition and the emission of nitrogen dioxide, lead oxide, and oxygen.
- Lead nitrate powder, boiling test tube, test tube holder, heat source (flame).
Step by Step Procedure:
- Take about 0.5g of lead nitrate powder and place it in a boiling test tube.
- Hold the boiling tube securely using a test tube holder.
- Heat the boiling tube over a flame.
- Observe and note down the changes that occur during the heating process.
- Brown fumes of nitrogen dioxide (NO2) are liberated in the boiling tube, indicating the decomposition of lead nitrate.
- Perform the experiment in a well-ventilated area or under a fume hood to avoid inhaling harmful gases.
- Use a test tube holder to handle the hot boiling tube and prevent burns.
- Wear appropriate safety gear, such as goggles and lab coat, to protect against potential hazards.
Lesson Learnt from Experiment:
The experiment demonstrates a thermal decomposition reaction, where lead nitrate breaks down into lead oxide, oxygen, and nitrogen dioxide upon heating.