Gas collection methods Flashcards
1
Q
Give 2 gas collection methods
A
- use a gas syringe
- Water displacement
2
Q
How does water displacement work?
A
- Trough of water with measuring cylinder above it.
- Measuring cyclinder connected to testube.
- As gas is produced, it will rise and push down the water.
- Read by how much the water is pushed down by.
3
Q
Why is water pushed down as gas is produced in water displacement?
A
- Gas is more dense than water so will rise and then push it down.
