Evaporation Experiment

Separating a mixture using Evaporation:

Today in Science *Chaos, we were doing an experiment on evaporation. 

Evaporation is when a substance gets heated up and it turns from a liquid to gas. 

In this experiment we used Copper Sulfate Solution and Hot water.

Aim:  To evaporate Copper Sulfate (Blue Liquid)

Hypothesis: It might turn into gas/steam or water

Equipment: Copper sulfate solution, 250mL Beaker, heat proof mat, evaporating basin, element. 

Method:

1. Set up element
2. Add 100mL of hot water to the beaker and place the element
3. Add copper sulfate to the evaporating basin until it is quarter full.
4. Carefully, place the evaporating basin on top of the beaker
5. Turn on the element to 8
6. Heat the solution until most of the solvent has been evaporated and crystals of solute are forming.
7. Turn off the element - careful not to touch as will be hot for a long time.

Observation:  First it started to heat up, then it looked like there was steam starting, the air looked like it was trapped.

Conclusion: It was a fail! We didn't have enough time to finish it off, but we now know how to do better next time. 

Discussion: Instead of turning it to element 8, we turned it down and slowly turned it up. 

Evaluation: It didn't turn out the way we expected to turn out, meaning it was supposed to be boiling therefore our beaker or experiment took a while and didn't boil and that was because there were two on one element, and we had to heat it slowly because it might break the glass.