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Unformatted text preview: cotton. During the vacuum process, the filter paper we used ripped and much and the sample fell through. To try and recover our losses, a new funnel was prepared with more filters and the old filter was placed on top of the new ones and washed with solvent. By doing this, I feel that we recovered most of the crystals. Of the original .101 g of salicylic acid dissolved, we recovered . 068 g or 67.3% recovery. The salicylic acid crystals were long, white, and needle-like. Because of the design of the experiment, which has many steps in isolating the crystals through vacuum filtration and also drying in an oven, it explains our percent recovery. Our samples were lost in the steps of scraping the crystals from the filter paper to the scale as well as from the scales to the glass on which they were dried. Overall, the experiment was successful and our percent recovery came out good....
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This note was uploaded on 08/30/2011 for the course OCHEM 51L taught by Professor Staff during the Winter '10 term at UC Irvine.
- Winter '10