Observing a Colour Change
Science: KS3, topic 2.7.2
Colour Change
We can see how changing the concentration affects rate of reaction by observing colour changes.
Colour change
Test yourself on Observing a Colour Change
When measuring rate of reaction by colour change, when should we stop the timer?
When measuring the rate of reaction by a colour change, what are the dependent and independent variables?
To measure the rate of reaction by observing a colour change, what graph do we need to plot?
In an experiment, the cross disappears in 40 seconds with a low concentration of acid, and in 15 seconds with a higher concentration. Which concentration gives the faster rate of reaction?
Why do we check that the cross can be seen under the reaction vessel before adding the acid?