I am doing an experiment to find out how the concentration affects the rate of diffusion. This is my experiment:
Take a large gelatine cube and cut into 15 equal pieces
Place one piece of the cube into the test tube
Measure out 10mls of HCl in the measuring cylinder
Pour the HCl into the test tube with the gelatine cube and start
Time how long it takes for the pink colour inside the gelatine
cube to completely disappear
Record your results and repeat this same process 3 times for each
molar of acid.
I need to choose a control variable and describe a preliminary investigation to find a suitable value. Could anyone help me before tomorrow?
Preliminary experiment help?? Watch
- Thread Starter
- 18-01-2015 22:36