1) Calculate ?G and K for the following reactions (Use G = -nFE and the Nernst equation)
a) 2Fe3+ + 2I - --> 2Fe 2+ + I2
b) I2 + 2Br- --> 2I- + Br2
All aqueous.
2) Calculate the potential delivered by a voltaic cell using the following reaction if all dissolved species are 2.5 x 10 -2 M and the pressure of H2 is 1.0 bar.
Zn(s) + 2H2O (l) + 2OH- (aq) --> [Zn(OH)4] 2- (aq) + H2 (g)