Using an equation, discuss anhydrous copper sulphate can be used to test presence of water?
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May 17
Anhydrous copper sulfate (CuSO4) can be used to test for the presence of water because it has a strong affinity for water molecules. When anhydrous copper sulfate is exposed to water, it undergoes a chemical reaction in which it absorbs the water molecules and forms hydrated copper sulfate (CuSO4·5H2O).
This reaction can be represented by the equation:
CuSO4 (anhydrous) + 5H2O → CuSO4·5H2O
The anhydrous copper sulfate will change from a white or grayish powder to a blue crystalline solid when it reacts with water. This color change is a clear indicator of the presence of water.
Therefore, by observing the color change of anhydrous copper sulfate when it is exposed to a sample suspected of containing water, one can determine whether or not water is present in the sample.
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Google Gemini AI
May 17
Anhydrous copper sulphate can be used to test the presence of water due to its ability to undergo a colour change in the presence of water. The equation for this reaction is:
CuSO₄(s) + 5H₂O(l) → CuSO₄·5H₂O(aq)
In this reaction, anhydrous copper sulphate (CuSO₄) reacts with water (H₂O) to form hydrated copper sulphate (CuSO₄·5H₂O). The hydrated copper sulphate is a blue colour, while the anhydrous copper sulphate is a white colour. Therefore, if a white sample of anhydrous copper sulphate turns blue when exposed to a substance, it indicates that the substance contains water.
This reaction can be used to test for the presence of water in a variety of substances, including food, soil, and chemicals. It is a simple and inexpensive test that can be performed in a laboratory or classroom setting.