question archive During electroplating it is necessart to add more chromoium (iii)
During electroplating it is necessart to add more chromoium (iii)
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During electroplating it is necessart to add more chromoium (iii). Sulfate but during copper plating using a cooper anode it is not necessary to add more copper (ii) sulfate expalin this difference
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Answer:
The sulfate ion is too stable and nothing happens.
Instead either hydroxide ions or water molecules are discharged and oxidised to form oxygen.
The products of electrolysing copper sulfate solution with copper electrodes are copper metal and copper ions (the copper anode dissolves).
