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Zinc can be obtained from zinc oxide in a two step process. Aqueous zinc sulfate is made from zinc oxide and then this solution is electrolysed with inert electrodes. The electrolysis is similar to that of copper(II) sulfate with inert electrodes.
Name the reagent which will react with zinc oxide to form zinc sulfate. .......................................................................................................................................
Complete the following for the electrolysis of aqueous zinc sulfate.
Write the equation for the reaction at the negative electrode. ............................................................................................................................................
Name the product at the positive electrode. .............................................................................................................................................
The electrolyte changes from zinc sulfate to .................................................................
Aqueous tin(II) sulfate is electrolysed using carbon electrodes. This electrolysis is similar to that of aqueous copper(II) sulfate using carbon electrodes.
What is the product at the negative electrode (cathode)? ..............................................................................................................................
Write the equation for the reaction at the positive electrode (anode). ..............................................................................................................................
Name the acid formed in this electrolysis. ..............................................................................................................................
Name the reagent which will react with zinc oxide to form zinc sulfate. .......................................................................................................................................
Complete the following for the electrolysis of aqueous zinc sulfate.
Write the equation for the reaction at the negative electrode. ............................................................................................................................................
Name the product at the positive electrode. .............................................................................................................................................
The electrolyte changes from zinc sulfate to .................................................................
Aqueous tin(II) sulfate is electrolysed using carbon electrodes. This electrolysis is similar to that of aqueous copper(II) sulfate using carbon electrodes.
What is the product at the negative electrode (cathode)? ..............................................................................................................................
Write the equation for the reaction at the positive electrode (anode). ..............................................................................................................................
Name the acid formed in this electrolysis. ..............................................................................................................................
