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Does a change in color observed when copper II sulfate crystals become dehydrated how do you account for the change when water is added to the heated copper II sulfate?

Yes, copper (II) sulfate, also known as cupric sulfate, is a deep blue when it is hydrated (when it has water). If you heat it, the water evaporates and leaves plain copper (II) sulfate power, which is a cream color. So yes, dehydrating copper (II) sulfate in its hydrated form will cause it to change from blue to white. If you take this dehydrated (anhydrous) copper (II) sulfate and add water to it, it will become hydrated again, so the white powder will, once again, turn that deep blue color.


Why does white copper sulphate turn blue when water is added?

White copper sulfate is anhydrous, meaning it does not contain water molecules. When water is added to white copper sulfate, it forms a hydrate compound called blue copper sulfate pentahydrate. The water molecules coordinate with the copper ions, causing the compound to change color from white to blue.


Why colour of copper sulphate solution changes to light green when iron filings are added?

The color change occurs because the iron filings react with copper sulfate, forming iron sulfate and copper. This reaction results in a displacement reaction, where the iron displaces the copper in the compound. This changes the chemical composition of the solution, resulting in a light green color.


Test for presence of water in anhydrous copper sulphate?

To test for the presence of water in anhydrous copper sulfate, heat a small sample of the compound in a test tube. If the compound changes color from white to blue, it indicates that water is present in the compound. This color change happens as the anhydrous copper sulfate absorbs water vapor from the air, converting back into hydrated copper sulfate.


What is the color of salt copper II sulfate?

Copper (II) sulphate is a salt that is blue.

Related Questions

Why does the color of copper sulphate change when an iron nail is dipped in it?

When an iron nail is dipped in copper sulfate solution, a displacement reaction occurs. Iron is more reactive than copper, so it displaces copper in the solution and forms iron sulfate. This reaction causes the color change from blue (copper sulfate) to green (iron sulfate) as the copper ions are replaced by iron ions in the solution.


Does a change in color observed when copper II sulfate crystals become dehydrated how do you account for the change when water is added to the heated copper II sulfate?

Yes, copper (II) sulfate, also known as cupric sulfate, is a deep blue when it is hydrated (when it has water). If you heat it, the water evaporates and leaves plain copper (II) sulfate power, which is a cream color. So yes, dehydrating copper (II) sulfate in its hydrated form will cause it to change from blue to white. If you take this dehydrated (anhydrous) copper (II) sulfate and add water to it, it will become hydrated again, so the white powder will, once again, turn that deep blue color.


What colour does water change anhydrous copper sulfate?

When water is added to anhydrous copper sulfate, it forms copper (II) sulfate pentahydrate, a blue crystalline solid. So, the color change observed is from white (anhydrous) to blue (pentahydrate) when water is added.


How can you change blue copper sulfate to white copper sulfate?

To change blue copper sulfate to white copper sulfate, you can heat the blue copper sulfate to drive off the water molecules and get anhydrous white copper sulfate. This process is known as dehydration. Be cautious when heating copper sulfate as it can release toxic fumes.


What does a primary amine do to the color of copper sulfate solution?

A primary amine can reduce copper ions in copper sulfate solution, leading to the formation of a colored copper complex. The color change usually involves a shift from blue to a range of colors, such as green or orange, depending on the specific amine and conditions.


Why does copper sulfate burn blue?

Copper sulfate burns blue because of the presence of copper ions emitting a characteristic blue color when heated. This color is a result of the electronic transitions that occur within the copper ions as they absorb and emit energy in the form of light.


What happens to iron when it reacts with copper sulfate?

A displacement reaction takes place. Iron being a more reactive element than copper displaces copper from its compound. Ferrous Sulphate which is green in color and copper a reddish brown element are formed. So, blue color of copper sulphate fades away and the solution becomes light green. Copper is deposited on the grayish iron filings.


What happens when copper sulfate was added to water?

When copper sulfate is added to water, it dissociates into copper ions and sulfate ions. The copper ions give the solution a blue color, while the sulfate ions do not impact the color. The solution becomes a blue color due to the presence of copper ions.


What happens when you mix copper(II)sulfate and potassium chloride?

When you mix copper(II) sulfate and potassium chloride, a double displacement reaction occurs. Copper(II) chloride and potassium sulfate are formed as products. You will observe a color change as copper chloride is a blue solid.


Reaction of zinc and copper sulfate?

When zinc is added to copper sulfate, a single displacement reaction occurs. The zinc displaces the copper in the copper sulfate solution, forming zinc sulfate and copper metal as products. This reaction is characterized by a color change from blue to colorless as copper ions are removed from the solution.


Why does white copper sulphate turn blue when water is added?

White copper sulfate is anhydrous, meaning it does not contain water molecules. When water is added to white copper sulfate, it forms a hydrate compound called blue copper sulfate pentahydrate. The water molecules coordinate with the copper ions, causing the compound to change color from white to blue.


What happens when you add iron to copper sulphate?

When iron is added to copper sulfate, a displacement reaction occurs where the iron displaces the copper in the compound to form iron sulfate and copper metal. This reaction results in a color change from blue (copper sulfate) to green (iron sulfate) as the copper ions are replaced by the iron ions.