Project Lab Introduction and Procedure

Placed into the mixture the beaker was set on a hot

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placed into the mixture, the beaker was set on a hot plate, which was set to 100 degrees Celsius. The mixture was stirred moderately, allowing the solid to dissolve. After it was fully dissolved, 10 mL of 0.25 M amine solution was added to the beaker. The beaker was covered with a watch glass and the temperature was slowly increased to allow the solution to clear. After the solution cleared, the beaker was removed from the hot plate and cooled to room temperature. For ten minutes the beaker was chilled in an ice bath for crystal formation. The crystals were collected by vacuum filtration, rinsed with 5 mL of chilled ethanol, and air dried on the filter. Finally, the yield of the product was determined. Part B. The second part of the experiment began with the collection of 10mL of 1e-4M ferroin and the preparation of a Beer’s Law plot. After the system to create a Beer’s Law plot was set up, a 150 mL 0.01M H 2 SO 4 solution was prepared by 15 mL of 0.1 M H 2 SO 4 and water being placed in a 250 mL beaker. Then, a 25 mL solution containing 0.1 grams of product was prepared and the 0.01M H 2 SO 4 was used as the solvent. Three 5 mL serial dilutions were created and five drops of 1,10 phenanthroline
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