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Chemistry Coursework Toby Davis Obtaining Zinc Oxide From Calamine Aim: .To find out what the relationship is between the mass of Calamine heated and the mass of Zinc Oxide obtained. . Produce a Theoretical conversion chart, showing the masses of Zinc Oxide obtainable by heating different masses of calamine as calculated from the equation. . Compare both charts Introduction: Calamine is a mineral composed mainly of the compound zinc carbonate, ZnCO3, from which the metal zinc is extracted industrially. On heating, zinc carbonate decomposes into zinc oxide and carbon dioxide. The equation for this reaction is shown below: ZnCO3(s) ZnO(s) + CO2(g) This equation allows the calculation of the theoretical mass of zinc oxide obtainable by heating a given mass of zinc carbonate. Apparatus: . Calamine . Balances . Bunsen burner . Tongs . Wool bung . Boiling tubes . Test tube rack . Safety goggles Method: We must firstly get a boiling tube and weigh that using a balance. Once we have an accurate reading we can then note the mass down. Then we must add some mineral wool into the top of the boiling tube and then weigh the boiling tube with the mineral in it. Again note down the mass of the boiling tube and mineral wool.
Approximate Word count = 814
Approximate Pages = 3.3
(250 words per page double spaced)
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