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Friday, November 27, 2020

Binge Drinking | Health

Binge Drinking

In health, we got a choice to choose any topics like Mental Health, Addiction, Depression, Drugs and others. We got to choose whether we wanted to work in a group or independently. I chose to work by myself because I find myself to work faster and better. 

For my topic, I chose Binge Drinking. Binge drinking is a big problem in New Zealand and is influenced by the younger generation. We used our Discovery Tasks to begin our questions, answers and chose what we were going to present our presentation on. 

I used a website called carrd.co to make my Binge Drinking Website. I figured that I wanted to do something most people wouldn't choose, instead of doing a google slide or canva. 

Here is my Website: https://bingedrinking.carrd.co/

Thursday, November 26, 2020

Separating a Mixture using Distillation

Separating a Mixture using Distillation

Today we are going to do a Distillation Experiment.

What is Evaporation? 
Evaporation is heating up a liquid and turning it into a gas. (adding energy = heat)

What is Condensation?
Condensation is the change of the physical state of matter from the gas phase into the liquid phase.

Aim: to separate a solution (Coke/Coke Zero) to form a solid + a liquid

Hypothesis:  I think that the colour dye is going to separate from the liquid because there is a colour dye (caramel colour) in the liquid. So maybe it might turn into a clear liquid? I thought there would be a solid because the liquid evaporated. 

Equipment:

1. Coke + Coke Zero
2. Bunsen Burner
3. Conical Flask
4. Heatproof Mat
5. Delivery Tube
6. Bung
7. Tripod
8. Gauze Mat
9. Retort Stand
10. Boss head and clamp
11. Boiling Tube

Method:

1. Set up the equipment (shown in the picture below)
2. Add approximately 50ml of Coke or Coke Zero to your conical flask.
3. Light your Bunsen Burner. Open the air hole and gently push the Bunsen Burner under the tripod.
4. Heat the solution until most of the solution has been evaporated and it starts foaming.



Results (Observations) - What did we see?
 -
 The coke boiling inside the Conical Flask
 - As the water was evaporating it left the sugar behind.
 - The steam went threw the delivery tube into the Tube.

Thursday, November 12, 2020

Separating a Mixture using Evaporation

 Separating a Mixture using Evaporation:

Aim:

Hypothesis: they will crystalize


Equipment: Copper sulfate solution, 250mL Beaker, heatproof mat, evaporating 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 on the element to 3

  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.


Observations:

We started off by putting the beaker on the element, with the evaporating basin that had Copper sulfate solution inside. It took time for the water to start boiling but once it did, it had a nasty smell to it. Steam started coming out so we turned off the element and let it sit.


The solution started crystalizing.


Conclusion:



Discussion:



Evaluation:


Thursday, November 5, 2020

Dilution Experiment

 Dilution Experiment

Aim: To make a dilution series to investigate concentration.

Equipment: A potassium permanganate crystal, six large test tubes, tweezers/spatula, a plastic transfer pipette, a test tube rack, 10ml measuring cylinder

What is Dilution?
Making something less concentrated. There will be fewer particles in the liquid.

What does Concentration mean?
A measurement of how much solute is in a solution.

What are some examples of diluting?

Hypothesis: The last tube (Test Tube 6) is going to be the most dilute - The 1st tube is going to be least dilute.

What did you do? - Method

  1. Place the six test tubes in a test tube rack. Label the rack with numbers 1-6
  2. Using the measuring cylinder, fill test tube 1 with 10 ml of water. Fill the remaining test tubes with 5ml of water.
  3. Using your tweezers/spatula, add a single crystal or potassium pormanganate to test tube 1.
  4. Gently shake the test tube until the crystal has dissolved.
  5. Using the transfer pipette, carefully remove exactly 5ml from test tube 1 and pour it into test tube 2.
  6. Gently shake test tube 2 and repeat the transfer process, transferring exactly 5ml of solution from test tube 2 to test tube 3, test tube 3 to test tube 4 and so on.
Was your Hypothesis correct?

Yes. The last test tube was less concentrated and the first one was more concentrated.


Filtration Experiment

Filtration Experiment:

Aim: To Separate a solution from a precipitate (precipitate is the name for a solid that forms in a liquid during a chemical reaction).

Hypothesis: I think it will seperate.

Equipment:

Sodium carbonate
Copper sulfate
Conical flask
Stirring Rod
200mL Beaker
Funnel
Filter paper

Method: 

1. Pour approximately 50mL of copper sulphate solution into a beaker.
2. Add the same volume of sodium carbonate solution. A reaction will happen, you should see a cloudy blue precipitate form. Called copper carbonate. 
3. Watch demo then fold filter paper to fit inside the funnel
4. Place the funnel with the filter paper inside of it, into the mouth of a conical flask. 
5. Stir the mixture in the beaker, then carefully pour it into the funnel. 
6. Observe what happened.

Observations and Discussion: When we mixed the Copper Sulfate and Sodium Carbonate it turned into a cloudy blue colour. We poured the mixture into the beaker that had the filter and filter paper ready. When it came out it wasn't blue it was clear. The Copper Sulfate separated from the Sodium Carbonate. 

When we poured the Sodium Carbonate into the Copper Sulfate they switched places and the Copper Sulfate turned into a solid. It looked like slime, I wanted to touch it but obviously I couldn't.