Evaporation Experiment

Hi everyone! Today in science we did an experiment on Evaporation. For this experiment, we burned some water and some Copper Sulfate. During the experiement we again used the words Solute, Solvent, and Solution to identify the process during this experiment. 

Solute: The liquid/Substance being dissolved.

Solvent: The liquid/Substance in which the solute dissolves. 

Solution: A mixture that form when one substance dissolves another.

Aim: To separate a solution into a solvent and solute using evaporation.

Hypothesis: I think that the water would evaporate and decrease while the copper sulfate will boil and lose its water molecules. 

Equipment: Copper Sulfate Solution, 250ml Beaker, Heatproof Mat, Evaporating Basin, Bunsen Burner. 

Method:

1. Set up Bunsen Burner, with the Tripod and the Gauze.

2. Fill a 250ml Beaker with 100ml of water and place on top of Gauze. 

3. Using a evaporating basin, add copper sulfate until it is a quarter full.

4. The carefully put the evaporating basin on top of the beaker.

5. Turn on the Bunsen Burner and watch for result. 

*Note: Do not touch any equipment after experiment or during experiment as the are hot.*

Observations: 

During the experiment when the water was boiling we saw a lot of condensing. Which is when a gas is changed to become a liquid. During that time, there was also a large amount of steam being released. While the water kept boiling we noticed that the water was slowly evporating and at the end we were left with almost no water. 

The copper sulfate was my favourite one to observed as it was getting slowly crystalized as the heat goes through the evaporating basin. At first it was only small crystals at the sides of the mixture and by the end the whole mixture looked dry as if it was glued onto the basin. 

Conclusion:

I think that half of my hypothethis is right because the water did evaporate and decrease and the Copper Sulfate looked dry. 

Discussion:

During the experiment there was a lot of condensing because the water was being boiled to the point where it evaporates making the gas condense and drop to the water. The steam was being released because the water was boiling and it was extremely hot. because the water was boiling it also decreases the amount of water because the water turned to gas which we know as steam. 

The Copper Sulfate got crystalized because it was originally a solid which was mixed into a liquid. So by boiling the water and letting the gas seap into the evaporating basin it made the Copper Sulfate lose its water molecules and leave it with a dry and crystalized form. 

Evaluation:

I enjoyed this experiement a lot because it was very fun to watch as the water slowly evaporates and how the Copper sulfate gradually crystalized. Next time I would really like to try it with a different mixture and see what happens to it. 

Beginning 

Beginning 

Boiling 

Crystalization 

Condensing 

Final Result: Copper Sulfate 

Final Result: Water