General Chemistry laboratory, Chem18 Experiment # 4 Date of Experiment: 10/4/2011 Date of Submission: 10/25/2011 Abstract: This lab was performed in two parts: the first consisted of synthesizing two separate solid complex compounds, K 2 [Cu(C 2 O 4 ) 2 ].nH 2 O and K 3 [Al(C 2 O 4 ) 3 ].nH 2 O, and the second involved the filtration of these compounds. In the first reaction, copper(II) sulfate pentahydrate and potassium oxalate monohydrate were the reagents used, and in the second reaction, aluminum, potassium hydroxide, and oxalic acid dihydrate were the reagents used. In the process, oxidation-reduction chemistry occurs in the copper and the aluminum. After synthesizing both reactants, the washing of the precipitates with water and ethanol and the use of a vacuum helped filter out final products. After filtration and a waiting period for the precipitates to dry, the final masses were weighed. The actual weight of the K 2 [Cu(C 2 O 4 ) 2 ].nH 2 O was 3.25 g, and the actual weight of the K
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This note was uploaded on 01/23/2012 for the course CHEM 18a taught by Professor Dolnik during the Fall '06 term at Brandeis.