answersLogoWhite

0


Best Answer

It turns blue because copper forms blue crystals when in solution. As soon as the water evaporates, there's nowhere for the copper to be in "solution", so it loses its colour. When water is added again, the crystals regain the "solution" state and turn blue!

User Avatar

Wiki User

14y ago
This answer is:
User Avatar
More answers
User Avatar

Wiki User

13y ago

it is actually the hydrogen mixed with oxygen. When these two mix the setharene inside the hydrogen combines with the glucomate in oxygen to produce setharene glucomide. This invokes a pigment in the copper sulphate with a tiny electrical impulse. It then turns blue.

This answer is:
User Avatar

User Avatar

Wiki User

10y ago

When water is added dissolving the anhydrous salt the copper ion , Cu2+ forms an octahedral complex with water molecules, Cu(H2O)6 2+ this complex is colored as the splitting of the d orbitals due to the water molecules (ligand field theory) means that the complex absorbs light as the electrons in the d orbitals are excited.

This answer is:
User Avatar

User Avatar

Wiki User

13y ago

The colour of anhydrous copper sulphate is grey-white.

This answer is:
User Avatar

User Avatar

Wiki User

12y ago

Anhydrous copper (II) sulfate is a very pale pastel blue, almost white. Hydrated copper (II) sulfate is a bright blue, not unlike the "answer" tab of this website.

This answer is:
User Avatar

User Avatar

Wiki User

14y ago

Copper is a transition metal. If it comes into contact with water it turns blue. All transition metals when mixed with water will change the color of the solution

This answer is:
User Avatar

User Avatar

Wiki User

12y ago

The anhydrous copper sulfate become blue in the presence of water.

This answer is:
User Avatar

User Avatar

Wiki User

14y ago

Hydrogen Oxide, or Water.

This answer is:
User Avatar

User Avatar

Wiki User

12y ago

Water :)

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Why does white anhydrous copper sulphate turn blue when water is added?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

When added to copper sulphate what colour is anhydrous copper sulphate?

anhydrous copper sulphate is white. when water is added it turns blue, in essence it can be used to detect the presence of water. hope this helps!!!!!!!!!!!


Is anhydrous copper sulphate reversible?

is anhydrous copper sulphate reversible Yes, anhydrous copper sulphate is reversible just add water


What colour is pure water when anhydrous copper sulphate is added and is there a soild residue?

Anhydrous copper sulfate solid is white. When it is added to water, it dissolves and the solution of aqueous copper sulfate becomes blue.


How do you prepare copper sulphate solution?

Add anhydrous copper sulphate to distilled water.


Test for presence of water in anhydrous copper sulphate?

In the presence of water the white anhydrous copper sulfate become blue.


What happens when water is added to anhydrous copper II sulphate?

it changes colour from a white powder to a blue powder


Why does the water colour change to blue when copper sulphate was added?

Anhydrous copper(II) sulphate is white. When added to water, it forms a solution of CuSO4(aq) which is blue because of the Cu2+ ion, which is itself a transition metal ion.


What happens if Copper Sulphate penta-hydrate is heated?

Copper sulphate pentahydrate loses water of crystallisation and becomes white amorphous anhydrous copper sulphate.


Does hydrated copper sulphate increase the mass?

Hydrated Copper Sulphate is CuSO4.5H2O and Anhydrous copper sulphate is just CuSO4. Therefore, hydrated copper sulphate has extra mass due to water molecules present in it.


What happens when water comes in contact with white copper sulphate crystals?

The white copper sulphate will become blue. This is because copper sulphate usually has 5 moles of H2O, but it has reached a temperature where all five moles will have detached themselves from the copper sulphate, so it will become anhydrous (without water) and white. Then, when water is added back to it, it returns to its original blue state.


What is water anhydrous copper ll sulphate?

Anhydrous copper II sulphate is a white crystal of formula CuSO4. This crystal can bind to five molecules of water, called water of crystallisation. This compound is then called blue vitriol since it has a blue color.


What is the chemical formula of anhydrous copper sulphate?

Anhydrous Copper sulfate has the chemical formula CuSO4.