Measurng The Rate Of A Reaction Flashcards
1
Q
What is the equation for the rate of a reaction?
A
Amount / time
2
Q
What are the different states measured in
A
Gas = cm3 Liquid = cm3 Solid = grams
3
Q
What three methods are used to measure the rate of a reaction?
A
- visual change
- gas change
- mass released
4
Q
Describe how visual change can be used to measure rates of reaction as well as its disadvantage:
A
Transparent to cloudy (product = precipitate)
Cloudiness = turbidity
Colorless to color
Color to colorless
A mark through the solution
Measure how long it takes to disappear
Results = subjective
Can’t plot a graph
5
Q
Give the method of observing mass loss to measure the rate of a reaction
A
Place conical flask on mass balance Measure at regular intervals the mass Can plot a graph Bad because lets gas into room directly Most accurate
