Because iron is a more reactive metal than copper.
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Iron is more reactive than copper, allowing it to displace copper from copper sulfate solution through a single displacement reaction. This process forms iron sulfate and solid copper metal, as iron has a higher affinity for sulfate ions than copper does.
The most common technique for converting a copper sulfate solution into solid copper sulfate is through evaporation. This involves heating the solution to allow the water to evaporate, leaving behind solid copper sulfate crystals. The process can be carefully monitored to ensure the crystallization of pure copper sulfate.
Why does the colour of copper sulphate solution change when an iron nail is dipped in it? When an iron nail is placed in a copper sulphate solution, iron displaces copper from copper sulphate solution forming iron sulphate, which is green in colour. Therefore, the blue colour of copper sulphate solution fades and green colour appears.
Copper sulfate solution is a liquid mixture containing copper ions and sulfate ions. It is commonly used as a fungicide, herbicide, pesticide, and in various industrial applications. Copper sulfate solution is blue in color and should be handled with care due to its potential toxicity.
Sodium hydroxide (NaOH) is an insoluble base that can be used to make copper sulfate. When sodium hydroxide is added to a solution of copper sulfate, a blue precipitate of copper hydroxide forms. This precipitate can be filtered and then reacted with sulfuric acid to produce copper sulfate.
Oh, dude, it's like this - you take the steel wool and just plop it into the copper sulfate solution. The steel wool reacts with the copper ions, forming a solid copper metal on the wool and leaving the solution without the Cu2+ ions. It's like magic, but with science!