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PROCEDURE
- Clean and dry the petridishes and mark them as A, B, C.
- Pipette out 10 ml of acetone to petridish A and cover it.
- Pipette out 10 ml of benzene in petridish B and cover it.
- Pipette out 10 ml of chloroform in petridish C and cover it.
- Uncover all the three petridishes simultaneously and start the
stop-watch.
- Note the respective time when the liquids evaporate completely
from each petridish.
OBSERVATIONS
|
Petridish Mark
|
Liquid Taken
|
Time taken for
complete evaporation
|
| A |
Acetone |
53 min |
| B |
Benzene |
42 min |
| C |
Chloroform |
30 min |
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