U1-1-1 - Monitoring rate Flashcards
Use this to revise the Rate of Reaction topic, which is part of the Chemical Changes and Structure unit. This topic covers: factors which affect reaction rate, average rate calculations, monitoring rate experimentally and rate graphs.
1
Q
What can be used to collect a soluble gas?
A
Gas syringe
2
Q
Why does the reaction rate decrease as the reaction goes on?
A
The reactants are getting used up.
3
Q
During a reaction, the mass of gas produced was measured in g. Time was measured in s.
Average rate will have units of …
A
g s−1.
4
Q
What can be used to collect an insoluble gas?
A
Inverted measuring cylinder (shown), gas syringe
5
Q
During a reaction, the volume of gas produced was measured in cm3. Time was measured in min.
Average rate will have units of …
A
cm3 min−1.
6
Q
Name this piece of equipment
A
Gas syringe
7
Q
What is wrong with this diagram of a measuring cylinder?
A
No graduation marks (see correct version shown)
8
Q
This can be measured to monitor rate without collecting a gas
A
Mass (loss)
