Separating a Mixture using Evaporation:
Aim: To See separate the liquid and the solid
Hypothesis: i thought nothing would happen because the glass would have broke
Equipment: Copper sulphate solution, 250mL Beaker, heat proof mat, evaporating basin, element.
Method:
- Set up element
- Add 100mL of hot water to the beaker and place on the element.
- Add copper sulphate to the evaporating basin until it is quarter full.
- Carefully, place the the evaporating basin on top of the beaker.
- Turn on the element to 8
- Heat the solution until most of the solvent has been evaporated and crystals of solute are forming.
- Turn off the element- careful not to touch as will be hot for a long time.
Observations: I seen as it heated up i seen evaporation and bubbles
Conclusion: my hypothesis wasn't right because the glass didn't break and the water bubbled and went down
Discussion: the water went down and bubbled because of the evaporation of the copper sulphate
Evaluation: I really like the experiment because of its bubbles which made it look cool
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