Chemistry
Name the experiment and state it's procedure to demonstrate the high solubility of ammonia.
Answer
Fountain Experiment demonstrates the high solubility of ammonia in water.
Apparatus:
- Dry round bottom flask filled with ammonia gas.
- Mouth of the flask has a rubber stopper with two holes for (a) Jet tube, (b) Dropper containing water.
- Red litmus solution is placed in the trough below.
Procedure:
- The dropper containing water is squeezed and water enters the flask.
Observation:
- Ammonia gas present in the flask dissolves in water due to it's high solubility, thereby creating a partial vacuum in the flask.
- The outside pressure being higher pushes the red litmus solution up the jet tube which emerges out at the end of the tube as a blue fountain.
Inference:
- Ammonia gas is highly soluble in water and basic in nature.
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