We took 6 tests tubes and filled 3 of them 1/3 of water. And the other 3 test tubes with 1/3 of paint thinner and put all 6 of the test tubes on a test tube rack so it'd be easier to compare.
Then we take the first 3 test tubes with water, take the first test tube and add salt into it. And then take the second one and add sugar. And then take the last one and add iodine crystals. And you do the same for the last the test tubes but with the paint thinner.
In this photo, the test tubes in the back is how everything looked. In order, the tubes were water/salt, paint thinner/salt, water/sugar, paint thinner/sugar, water/iodine crystals, paint thinner/ iodine crystals. Except for the paint thinner/iodine crystals one, it is in the beaker because we played around with it after. The second, fourth, and fifth tubes have undissolved solvents in it.
Results for the water filled test tubes:
Once the salt, sugar and iodine crystals were in their test tubes we took a stopper and put it on top of the test tube and inverted each one, one by one to see what would happen. We saw that the salt and the sugar dissolve into the water. The test tube with the iodine crystals did not dissolve.
Results for the paint thinner filled test tubes:
Once the salt, sugar and iodine crystals were in their test tubes we took a stopper and put it on top of the test tube and inverted each one, one by one to see what would happen. We saw that the salt and sugar did not dissolve into the paint thinner but the iodine crystals did.
After everything, we figures out that the polar solvents dissolved into the polar substances (water/sugar, water/salt). And the non-polar solvents into the non-polar substances(paint thinner/iodine crystals).
Then once everything was done, we got a beaker and filled half of it with water and poured the paint thinner/iodine crystals into it. They did not mix because water is polar and the iodine crystals/paint thinner is non-polar. Thus, the non-polar substance was just floating on top of the water. If you pour salt (polar) through it, it will not dissolve until it gets to the water(polar). SOOO COOL. IT LOOKED LIKE A LAVA LAMP!!
THIS IS HOW IT LOOKED!! As you can see, there are iodine crystals at the bottom because they did not fully dissolve in the paint thinner and cannot dissolve in the water. LOOKSSS LIKE A LAVA LAMPPP!! Coolest thing I ever saw. Just sayin'.
BY: KRYSTA DEL ROSARIO :D
Krysta, I found your lab very useful for the time being because the removal of the buildup of all this yellowing on my white plastic shower walls is ruining what the inside of a clean shower is suppose to be. Initially, I would use a Scotch Brite green scrubbing pad in combination with whatever was available like 409 etc. It kinda worked but then simply began to let it go. Now after a couple of years it’s easy to see there’s a chore to be done; get rid of the yellowing over the white plastic which isn’t everywhere but mainly in areas where water gets splashed. I enrolled in chemistry twice and dropped out. During the summer of 2020 I forced myself to learn how to use a slide ruler primarily because had I stuck it out this would’ve been in order way back when. My two college text books are wonderful resources and study some of the material on and off. So back to the chore. My first thought was to use a product like sulfuric acid and/or hydrochloric acid. After reading through your data I’m more inclined to believe for starters give some paint thinner a try. There’ll be elbow grease at first but I think I can begin to lift it off. And if necessary step up to the next level and try some acetone or benzene if these too are nonpolar.
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