Get a copper (II) chloride solution from the copper (II) sulfate solution.

Get a copper (II) chloride solution from the copper (II) sulfate solution. Perform practically the following transformations: copper (II) chloride = copper (II) hydroxide = copper (II) oxide

When obtaining any substance, a prerequisite is the ability to isolate it from the reaction mixture. The easiest way to do this is when the substance we need precipitates, or vice versa – remains in solution, and all other components precipitate.

1.CuSO4 + BaCl2 = CuCl2 + BaSO4 (sediment)

2. СuCl2 + 2NaOH = 2NaCl + Cu (OH) 2 (precipitate) – when carrying out the reaction, take into account that the copper hydroxide precipitate can dissolve in an excess of alkali.

Cu (OH) 2 = CuO + H2O (when heated)