Copper sulphide `(Cus)` contains `66.5 % Cu` copper axide `(CuO)` contains `79.9% Cu`

Copper sulphate crystals contains 25.45 % Cu and 36.07 % H_(2)O . If the law of constant composition is true, calculate the weight of copper required to obtained 40 g of crystalline copper sulphate.

Metallurgy OF Copper (Cu)

The alloy of zinc that does not contain copper in good percentage is

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

The 0.1M copper sulphate solution in which copper electrode is dipped at 25^(@)C . Calculate the electrode potential of copper electrode. [Given : E^(0) Cu^(+2)//Cu = 0.34V]