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Compare The Percent Composition Of Zinc And Calorimetry Lab Report

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Compare The Percent Composition Of Zinc And Calorimetry Lab Report
In the data table above, the mass of penny, copper, and zinc was needed in order to determine the percent composition of copper and zinc. The mass of penny was taken on the scale in the beginning of the procedure before anything was done to the penny, and it was 2.51 grams. After the reaction with the hydrochloric acid and drying the copper, the mass is 0.35 grams. To get the mass of zinc, the mass of the penny was subtracted by the mass of copper. The mass of zinc is 2.16 grams. The penny is 14% copper and 86% zinc by dividing the metal’s mass to the penny’s mass. However, the theoretical percentage is 97.5%, and the percentage collected in this experiment was 86% so there has to been some errors along this test.
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