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The aim of this experiment is to prove which of these two equations is correct by measuring the volume of gas given off by the decomposition of CuCO3.
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Katherine Allen Decomposition of Copper Carbonate Introduction Copper has two oxides, Cu2O and CuO. Copper carbonate, CuCO3, decomposes on heating to form one of these oxides and an equation can be written for each possible reaction. Equation 1: 2CuCO3 (s) --> Cu2O (s) + 2CO2 (g) + 1/2O2 (g) Equation 2: CuCO3 (s) --> CuO (s) + CO2 (g) Aim The aim of this experiment is to prove which of these two equations is correct by measuring the volume of gas given off by the decomposition of CuCO3. Background Theory Cu2O is known as cuprous oxide. It is a red crystalline material, which can be produced by electrolytic or furnace methods. CuO is cupric oxide. This, a black powder, can be prepared by the ignition of suitable salts such as the carbonate, the hydroxide, or the nitrate of copper, or by heating of cuprous oxide*. The planning of this experiment requires previous knowledge about the mole. The mole is the chemist's...
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