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Thursday, November 5, 2020

Dilution Experiment

Hypothesis: 

. Which test tube is the most Dilute?                                                                                                               . . Which test tube will be the least Dilute?

 Dilution is when there is a weak concentration of an element in a solution/mixture. When there is less compared to the majority.
Concentration: When something is more particles of something in a solution/mixture.

Dilution series:
Aim: To make a dilution series to investigate concentration.
Equipment: A Potassium Permanganate crystal, six large test tubes, tweezers, a plastic transfer pipette, test tube rack, 10 ml measuring cylinder.

Hypothesis: 
Which test tube would be the most dilute? -The test tube that will be the most dilute would be test tube 6. 

Which test tube would be the most concentrated? - The first test tube.

What did you do? - We put the crystals into the first test tube and distributed the liquid to the next. And repeated the process for the other tubes until the water got lighter and lighter and lighter.

Was your hypothesis correct? - Yes, my hypothesis was correct. After distributing 5 ml to every next tube, the last tube ended up being lighter than everything else.

Which was more concentrated and which was the least? - The most concentrated was the first test tube and the least was the sixth test tube.

How do you know? - The solution was distributed between the test tubes, the amount becoming less between the test tube with each distribution.

Filtration Experiment

Aim: To separate a mixture we have made using Filtration 

Hypothesis: I think that they will not separate because they are both liquids and will be hard to separate but I do think that they might separate due to some videos I have watched.'

Observation 
- When we mixed the two liquids together, the mixture turned into a cloudy darker blue, we started seeing tiny pieces of solids form in the liquid and the two liquids became a solid and a liquid. after filtering the mixture separated into a clear liquid and a blue solid.

Conclusion  
- When mixing Copper sulfate and Sodium carbonate together, the Copper and Sodium switch places which turns the two liquids into Copper carbonate and Sodium sulfate, and since Copper carbonate is insoluble, mixing it with Sodium sulfate and then filtering it can cause the two substances to separate from each other.