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Gas Collection

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44 views2 pages

Gas Collection

Uploaded by

misbahchattha2
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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Methods of Gas Collection

Gases are collected based on their solubility in water and density compared to air.

1. Water Displacement – Insoluble gases push water down in an inverted cylinder

to be collected and measured.


Examples: Hydrogen, Oxygen

2. Downward Delivery – Heavier-than-air gases sink and are collected at the

bottom of a gas jar.


Examples: Chlorine, Carbon dioxide

3. Upward Delivery – Lighter-than-air gases rise and are collected at the top of a gas jar.
Examples: Ammonia, Hydrogen

4. Gas Syringe: A gas syringe can collect any gas, regardless of its properties.

It allows for the collection and measurement of the gas volume.


Drying agent:

Sulphuric acid (H2SO4) is a common drying agent used to remove the moisture from the collected gas.

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