You Can Collect Gases in a Test Tube Flashcards
1
Q
Why does this work?
A
Because the gas you’re collecting displaces the air in the tube
2
Q
What are the two ways this can be done?
A
Upward delivery
Downward delivery
3
Q
What does the delivery depend on?
A
The density of the gas relative to the density of air
4
Q
What is the delivery tube fed directly into?
A
A test tube either upwards or sownaeds
5
Q
What do you use upward delivery for?
A
Lighter than air gases e.g H2
6
Q
What do you use downward delivery for?
A
Heavier than air gases e.g CO2
7
Q
See diagrams page 39
A
Ok
