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Egg Shell Research Paper

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Egg Shell Research Paper
The shell project

Our teacher gave the class a project that was about shells and burning them with vinegar. All of us started to put the shells in the vinegar in Tuesday. Then we waited till Thursday the 3rd shell in my teams cup was already dissolving. After seeing on what happened to the shells being in the vinegar for a few days me and my team worked on the weight the shells were. We did graphs, charts a lot of work and so little time, but we kinda almost completed it, I mean one of my teammates did most of the work while I did physical parts like getting cups giving shells and other concepts of this project.

Before the shells were in the vinegar the first shell weighed about 1.15g the second shell was 2.6g and finally the third was 1.41g. But after the week the shells lost some of that weight like the first one was 1.15g but ended up with .78g the 2nd 1.42g and the third .45 the lightest of our shells. Now it turns out that the reason why shells dissolved from the vinegar is that vinegar has 4% acetic acid. If you soak an egg shell in vinegar you start a chemical reaction that dissolves the calcium carbonate shell. The acetic acid reacts with the calcium carbonate in the eggshell and releases carbon dioxide gas that you see as bubbles on the shell. …show more content…
Seashells contain calcium carbonate. The calcium carbonate reacts with the acid in the vinegar and causes carbon dioxide bubbles to form. Even though the acid in vinegar is weak, it can, over a period of time, dissolve shells. So was our hypothesis correct I would like to say yes. See our hypothesis says that would our shells dissolve for being in the vinegar for a few
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