Using an equation, discuss anhydrous copper sulphate can be used to test presence of water?

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.

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.