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making copper

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Aim: My aim in this experiment is to extract a copper from an ore. Introduction: In the earth that we are living right now, copper is the earth's 25th most abundant element, but also one of the less common first row transition metals. It occurs as a soft reddish metal that can be found native as large boulders weighing several hundred tons or as sulphide ores. An ore is a rock containing minerals in adequate concentration, amounts, and value to be mined at a profit. The definition of this ore changes as knowledge improves, today's ore being yesterday's valueless pile of rock. I will now carry out an assessment to try change copper sulphate from malachite, which then can be converted in to copper. Metal + oxygen > metal oxide Apparatus and equipments: * Safety glasses * 10g of copper carbonate * scales * Measuring cylinder * 250cm3 beaker * Glass rod * 1m sulphuric acid (H2SO4) * Funnel * Bunsen burner * Tripod * Gauze * Evaporating basin * Filter paper * Watch glass Method: Making copper sulphate from a malachite. Malachite is an ore of copper. In this task you will convert malachite to copper sulphate. ...read more.


Wash your hand Low Disposing of used solutions No hazard It could drop on you. Wear lab coat Take of your lab coat Low Results Calculating the yield of copper sulphate crystals Each mole of malachite, CuCo3.Cu (OH)2 produces two moles of copper sulphate 2 CuSO4.5H2O. From this, I can now calculate the relative mass of malachite: Atom Relative mass Number of atoms present Total mass Cu 64 2 128 C 12 1 12 O 16 5 80 H 1 2 2 Relative mass = 222gmol-1 The formula for copper sulphate is CuSO4.5H2O Atom Relative mass Number of atoms present Total mass Cu 64 1 64 C 12 1 32 O 16 9 144 H 1 10 10 Relative mass = 250gmol-1 Calculating the yield of copper sulphate by carrying out this calculation: Theoretical yield of 2 x 250 x 6.4 Copper sulphate = 220 2 x 250 x 6.4 = 22 = 14.54g Calculate your percentage yield: Mass of copper sulphate produced Percentage yield = x 100 Theoretical yield 10.3 = x 100 14.41 = 71.48% Today's Uses of Copper Copper is a critical component of modern industry. In the United States, the most important use of copper is in electrical wiring. ...read more.


SO4 + Cu Evaluation: The parts of the experiment that went well were the weighing and scaling the dilute sulphuric acid and malachite. The difficult part in the experiment was when i had to pour the malachite into the sulphuric acid so I don't have any left at the bottom and when heat the solution very gently using a Bunsen burner flame until the crystals begin to form on the surface and if the liquid goes green I had to try and make it blue. I could have repeat out results which might change the colour of our copper. The thing that affected our results was putting too much of the malachite into the sulphuric acid and I will stop this from happening next time by stopping when it turns blue. I don't know of any other equipment that would have repeated my result. What I have done here is very little compare to the industrial place. They use machines to make it which would come out better. The similarities in the experiment would be that we both we will be making copper and using the same equipment e.g. malachite, sulphuric acid etc but the differences will be that they use a machine to make the copper in the industrial process but I would be using my hand in school. ?? ?? ?? ?? Abbas maqsood Copper Science coursework 1 ...read more.

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