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Unformatted text preview: Table 1: Melting Temperature of Alum Trial # Melting Range Temperature ( o C) 1 80.0 - 89.5 2 90.3 - 92.9 3 90.5 - 93.0 4 91.0 - 93.2 Trials were performed until a temperature range that was reproducible three times was obtained. The melting point of pure alum is 92.5 o C. Since the ranges are relatively close to that number, the alum produced was determined to have few impurities. Conclusion: The percent yield was determined to be 67%, and the result was determined to be relatively pure....
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