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Monday, March 9, 2020

Separating a mixture using evaporation

Aim:
Find out how to use evaporation

Hypothesis:
I think the copper sulfate will start to evaporate due to the heat.

Equipment:
Copper Sulfate, 250ml Beaker, Heat Proof Mat, Evaporation Basin, Element

Method
1. Set up element
2. Add 100ml of hot water to the beaker and place on 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 element on 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
The copper sulfate is starting to evaporate and the water is boiling.  It is starting to condense.  Change the copper sulfate to gas and leave the rest as a solid.

Discussion:
The copper sulfate starts to evaporate because of the heat caused by the water on the element.  The solvent will start to evaporate then leave the solute.  This is happing because the h2O is boiling which is causing a lot of heat caused by the steam from the h2O.   Then it starts to condense.

Evaluation:
This experiment was fun and I really enjoyed it.  For the first time, we got to use an element. The outcome was unique and I liked it.

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