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Discussion for Qualitative Analysis

Discussion for Qualitative Analysis - Discussion After much...

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Discussion: After much experimentation and research, we have come to a final conclusion as to what different cations are present in the sample or ore extracted from the Rosemont Mines of Tucson, Arizona. The first cation we found to be true to the ore was Barium. By using our flow charts, we were able to a series of test, and according to if the solution produced a precipitate of not, we were able to eliminate certain cations from the possibilities that would be included in the ore sample. Once we took the sample and extracted the blue substance from the top of it, we ran an oxalate anion test on it to separate our sample into our flow chart. If it produced a precipitate after several minutes in the centrifuge, then we would be able to follow the flow chart down that side accordingly, but to experimentation the first anion test yielded a precipitate and took us down the left side of our flow chart in our search for our first cation. The next test we ran was a Sulfate anion test, which eventually led us to our first cation present in the ore sample, Barium, since the test yielded a precipitate. Once we suspected that Barium was one of the cations we were searching for, we had to confirm that what we had was actually Barium. From the precipitate sample that we gathered we looked at the reactions that we had preformed in the previous lab to see which test produced a strong precipitate, allowing us to confirm that we had Barium at hand. The test we chose to use was the Alazarin Red test, which turned out to be conclusive of Barium, forming a distinct red precipitate at the bottom of the well plate. After finding out first cation, we then tested the rest of the cation samples on the left side of our flow chart which all had a no-precipitate reading after the Sulfate test. We next decided to use the Cinchonine test to narrow our cations even farther until Copper was found to be the final cation on the left side of our flow chart. Once finding out that
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