Yesterday, we tried out our experiment we’ve been wanting to try for two weeks. At first we had to write the instructions down on a google document, then ask our teacher to allow us to try it.We were supposed to freeze both copper sulphate with vinegar and the copper sulphate and olive oil. We finally found the amazing results!
We mixed 10ml of vinegar together with 10g of copper sulphate in a metal container (I believe it is an aluminium container not very durable.). Second, we mixed the solution using the spoon for 10 seconds. Suddenly, black lines appeared on the bottom of the container me and my friend thought that the lines was from the spoon. Then the mixture started bubbling, the next thing you know, there was gray liquid dripping from the bottom of the container. We totally freaked out, our teacher told us to fetch a newspaper. He used the newspaper to stop the liquid from dripping on the table. We found out that the copper sulphate reacts to the vinegar and turns into an acid that released gas and ate through the metal container. What we were left with was brown rust like substance and a huge whole in the middle of the container. I’m still not sure what caused to the reaction. Is it the aluminium container that caused this reaction, or was I right?
We used the same container, this time we followed what we were planning to do. We mixed together copper sulphate with olive oil and froze the solution. The next morning we found that the oil froze and the color was milky white. The results show that the copper sulphate together with the oil felt like ice-cream when frozen. The solution didn’t stay frozen for very long, It melted a minute after.
That is why we didn’t get to freeze the copper sulphate and vinegar solution, at least we found great freaky results.
Natasha J.
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