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Can anyone help me out here?
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I'm currently doing chemistry coursework and i need to know a few facts about the decomposition of Copper Carbonate. I need to collect a volume of gas, and, using mole calculations, find out which of 2 equations is correct. They are as follows:
2CuCO3 ----> Cu2O + CO2 + 1/2 O2
OR: CuCO3 -----> CuO + CO2
I think it's something to do with heating the CuCO3 in a crucible but as i need to measure a volume of gas i'm not sure. Can anyone help out here as this needs to be in by wednesday?
Thanks in advance
Answers
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For more on marking an answer as the "Best Answer", please visit our FAQ.http://www.chemistry-react.org/go/Tutorial/Tutorial_4642.html This site shows what sounds like the exact problem that you are doing, and it asks some key questions. I think the key is that the two different reactions form different amounts of gas. For the first reaction, the decomposition 2 moles of CuCO3 forms a total 1.5 moles of gas (1 mole of CO2 and 1.2 mole of O2). For the second reaction, the decomposition of 2 moles of CuCO3 forms 2 moles of gas (just CO2). Based on the volume of gas that is formed, you can calculate how many moles of gas you have using the ideal gas law (PV=nRt). Solve for n. I hope this helps.