|
Action of heat on Copper II Sulphate
Instructions:
- Place about three spatulas of dry copper II sulphate in a dry test
tube.
- Heat gently at first and then strongly until no further change occurs.
You may need to use a spatula to prevent cakeing of the copper II sulphate
by breaking up the lumps that form.
- Allow to cool and empty the residue into a dry evaporating basin.
- Resting the evaporating basin on the palm of your hand, add water
dropwise from a pipette.
Observations
Before, during and after – colour, state and any other observations.
Don’t forget that it is often better to present data in the form of a
table. For example:
| Appearance |
Before |
During |
After |
| State |
|
|
|
| Colour |
|
|
|
| Other observations |
|
|
|
Write up:
| Aim: |
|
What do you hope to find out |
| Hypothesis: |
|
Not needed in this case |
| Method: |
|
Refer to the instructions and include any changes you
had to make |
| Diagram: |
|
Show any assembled apparatus or complexoperations carried
out. |
| Results: |
|
Tabulated if possible |
| Conclusions: |
|
How can you explain your results |
| Evaluation: |
|
Do you think that the experiment is adequate for the
aim? Can it be improved? What would you do if you were to do it again? |
|
