1. (a) Write the possible oxidation and reduction half-reactions that occur when magnesium is immersed in each of the following solutions: (i) HCl, (ii) an HCl solution containing dissolved oxygen, (iii) an HCl solution containing dissolved oxygen and, in addition, Fe2 + ions.
(b) In which of these solutions would you expect the magnesium to oxidize most rapidly? Why?
2. Demonstrate that (a) the value of f in Equation 17.19 is 96,500 C/mol, and (b) at 25°C (298 K),
(b) Write the spontaneous electrochemical reaction.