How would you show that copper sulphate crystal contain water of crystallisation
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One of the simplest ways is through a thermogravimetric analysis or known commonly as TGA. You measure the weight of your sample, here CuSO4 crystals, heat them to around 200 degree Celsius and hold it at that temperature to allow for dehydration and measure the weight again. The difference in weights can even tell you how many molecules of water of hydration were present in the crystals. If there was no weight loss, then your sample did not have any molecules of water of hydration. You can even take a cursory x-ray diffraction pattern to show that copper sulphate has not undergone any other changes during heating.
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When copper sulphate (blue vitriol ,CuSO4.5H2O) is heated then its blue colour fades away and it turns from Blue to White and becomes anhydrous copper sulphate (CuSO4) this happens because copper sulphate loses its water of crystallization.
In this way we can show that copper sulphate contains water of crystallization.
Hope it helps.
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In this way we can show that copper sulphate contains water of crystallization.
Hope it helps.
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Define colloidal solution
colloid is a heterogeneous mixture whose particles are bigger than that of solution and smaller than that of suspension. It shows Tyndall effect.
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