A-LevelChemistryAtoms, molecules and stoichiometryFeb/Mar 2019Paper 3 Q215 Marks
It is possible that ores containing basic copper(II) carbonate also contain water of crystallisation. The formula of these ores would be written as xCuCO3•yCu(OH)2•zH2O. In this experiment you will heat a sample of a different basic copper(II) carbonate which will thermally decompose as shown. xCuCO3•yCu(OH)2•zH2O(s) → (x+y)CuO(s) + xCO2(g) + (y+z)H2O(g) You will use your results to determine whether this sample of a different basic copper(II) carbonate contains water of crystallisation. FA 3 is a sample of a different basic copper(II) carbonate.
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