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Unformatted text preview: qualitatively analyzed. First alum crystals were added to water in two small test tubes. In one test tube a few drops of BaCl 2 were added and white crystals formed at the top and the solution became thick and crystallized. In the other test tube a few drops of .1M KOH were added and the top of the solution became a little cloudy. A flame test was also used in this part. The KCl solution made the flame turn purple as did the alum solution. This part tested for Al 3+ , SO 4 2-, K + , and H 2 O. Sources of error could have been if the alum synthesized from part one was not done correctly. In conclusion this experiment worked out very well. Alum was synthesized in the first part and then analyzed in the second. All results were acceptable....
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- Spring '09