1. weighing 1.05 g CuSO_4 put the beaker water 10.0 ml. 2. stir well pour into flask 250 ml 3. prepare ethanol 10.0 ml beaker inserted 4. heat the flask and beaker approximately 2.30 minutes.5. remove from heat, pour the ethanol into a flask and mix well.6. set the flask to cool, and then submerged in ice crystals.7. weigh the paper filter with the watch glass. 96.88 g8. bring the crystals have to filter the washed with ethanol layen.9. when the filter is finished. Bake for about 10 minutes.10. set to cool, then weighing the weight to find the crystals.The weight of CuSO_4 1.05 gClock glass and paper weight. 96.88 gThe weight of the paper and glass & Crystal Watch 97.66 g. The weight of the Crystal 0.7800 g5 trials about to crystallize as a preparation to make a pure substance made up of chemical compounds because it is not possible contamination present in the crystals. By separating mixtures, then filtering method is used.
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