electrochemistry- galvanic cell states (1 Viewer)

[thebigticket]

There is a galvanic cell in one of the past hsc papers where it uses a Ni and Pt electrode as well as Ni and Fe electrolyte solution
Im just wondering why Fe+3 cannot make Fe solid it instead makes Fe+2

 

[madharris]

Can u post the questions up please? It might be easier to answer your question

 

[thebigticket]

Ok so heres the question

An electrochemical cell is constructed using two half cells. One half cell consists of an inert platinum electrode and a solution of Fe2+ and Fe3+. The other half cell consists of a lead electrode and a solution of Pb2+.

If u want to see it , it is in the 2009 HSC paper pg 20