Question

A redox reaction occurs between iron and tin with the half-reactions shown. What can you conclude about the spontaneity of the reaction?

Fe(s) --> Fe2+(aq) + 2e− Eº = +0.41 V
Sn2+(aq) + 2e− --> Sn(s) Eº = −0.14 V

Answer 1

@JoannaBlackwelder @ganeshie8

Answer 2

The reaction is spontaneous when the overall cell potential is positive.

Answer 3

And you find the overall cell potential by adding up the half cell potentials.