lab 3 - Recycling Aluminum By Robert Dutchen Lab...

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Recycling Aluminum By Robert Dutchen Lab Instructor: Samik Jhulki September 27, 2010 Purpose: To scale down a given procedure in order to prepare a theoretical yield of 23 g alum from a calculated quantity of aluminum
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Procedure: In keeping with the scaled down procedure, an aluminum can was cut into small squares weighing a total of approximately 1.30 g. These pieces were then cut into small strips and placed in a medium sized beaker. 60 mL of 1.4 M KOH was added and the beaker was heated on a hot plate until most of the aluminum had dissolved. Gravity filtration was used to remove any solid residue from the solution and the residue was rinsed twice with 6 mL portions of distilled water to extract any remaining liquid. 24 mL of 9.0 M H 2 SO 4 was obtained and added to the solution while being heated. 6 mL of it was initially added, and then incrementally more until it was all in the beaker. A second gravity filtration removed any remaining solids. A 30 mL 50:50 ethanol-distilled water
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This note was uploaded on 11/16/2010 for the course ACCT 120xC taught by Professor Dr.lillie during the Spring '10 term at UCLA.

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lab 3 - Recycling Aluminum By Robert Dutchen Lab...

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