copperlab - Copper Extraction Lab Trevor Nestor Period 1...

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Copper Extraction Lab Trevor Nestor Period 1
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Post Lab Questions: 10a.) (See data and calculations sheet for chemical equations). 10b.) (See data and calculations sheet for data tables and measurements). 10c.) The expected yield for copper was found to be 4.10 grams. 10d.) The leftover residue weighed with the filter paper was found to be 6.39 grams. The filter paper weighed 1.32 grams. Subtracting the weight of the filter paper leaves 5.07 grams: 0.97 grams more than the expected yield for copper. This measurement means that the leftover residue contained more than just copper (it probably also contained pieces of iron). Using the percent yield formula, the value 124% is obtained. 1.) The technique for copper extraction modeled in this lab is “heap leaching.” In the metal industry, large heaps are created from mined and crushed ore. Ore heaps are drenched in sulfuric acid and other chemicals to extract metals. In this lab, sulfuric acid
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and iron were used to liberate copper. On a large scale, this process can be carried out using heavy machinery (lifts, cranes, bulldozers, pumps, etc.).
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copperlab - Copper Extraction Lab Trevor Nestor Period 1...

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