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Lab - Finding the Empirical Formula Aim: To investigate a compound and determine its empirical formula. In this assessment, we find x in the formula: CuS04.xH20 by removing the water of crystallization from hydrated copper(II) sulphate by heating it, and then using the empirical formula method of calculation to work out the formula. Apparatus: Crucible, Bunsen Burner, Tripod, Pipe clay triangle, and a sample of the compound (I took CuSO4 . xH2O, where x is an unknown constant we need to find to determine the empirical formula. Method: 1. The apparatus was set up as shown in the diagram below. 2. 2-3 spatulas of blue copper (II) sulphate were placed in the crucible. 3. The powder was heated until it had gone completely white, but was not heated so strongly that it starts to blacken. 4. The powder was allowed to cool and then reweighed. 5. All the results and observations were recorded carefully. 6. The experiment was then...

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