Why is copper sulphate pentahydrate coloured?

Dehydration of salts is an important class of heterogeneous reactions. The salt hydrates during dehydration often dissociate in steps to form a number of intermediate hydrates according to the prevailing pressure of moisture in contact with the solid hydrates. Thus, copper sulphate pentahydrate on dissociation yield trihydrates, monohydrates and then the anhydrous salt in the above order as follows: The equilibrium constant K_(p) for the equilibrium between pentahydrate and trihydrate is:

Dehydration of salts is an important class of heterogeneous reactions. The salt hydrates during dehydration often dissociate in steps to form a number of intermediate hydrates according to the prevailing pressure of moisture in contact with the solid hydrates. Thus, copper sulphate pentahydrate on dissociation yield trihydrates, monohydrates and then the anhydrous salt in the above order as follows: The ratio of equilibrium constant between pentahydrate and trihydrate and equilibrium between trihydrate and monohydrate is

Give reason for each of the following: Copper sulphate pentahydrate turns white when treated with concentrated sulphuric acid.

A sample of copper sulphate pentahydrate, CuSO_(4). 5H_2O contains 3.782g of Cu . How many grams of oxygen are in this sample?

Calculate the enthalpy of hydration of anhydrous copper sulphate (CuSO_4) into hydrated copper sulphate (CuSO_4 cdot 5H_2O) . Given that the enthalpies of solution of anhydrous copper sulphate and hydrated copper sulphate are -66.5 and + 11.7 kJ mol^(-1) respectively.

On heating, hydrated copper sulphate changes its colour from ............. to ....... .

Explain the following: Blue colour of solid copper sulphate disappears when concentrated sulphuric acid is added to it.

When excess of dilute NH_(4)OH is added to an aqueous solution of copper sulphate an intense blue colour is developed.This is due to the formation of:

When NH_4OH is added to copper sulphate solution, blue colour is obtained due to formation of

Differentiate between electrical conductivity of copper sulphate solution and copper metal .