Solution to Q6

 

6) A galvanic cell(similar to the one above) is set up by connecting the Ni2+(aq)/ Ni(s) and Mg2+(aq)/ Mg(s) half cells via a wire and a salt bridge. The nickel electrode is noticed to have increased in mass while the magnesium electrode has decreased. Draw the galvanic cell indicating clearly the
- cathode and anode and the polarity.
- direction of electron movement
- the charge on the ions flowing in each half cell
- the reactions occuring in each half cell.

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