Question

Calculate E degrees, E and delta G for the following cellreactions:

(a) Mg(s)+Sn2+(aq) goes to forward and reverse reaction Mg2+(aq)+Sn(s) where [Mg2+]=0.025M and [Sn2+]=0.050M.

(b)3Zn(s)+2Cr3+(aq) forward and reverse reaction 3Zn2+(aq)+2Cr(s) where [Cr3+]=0.020M and [Zn2+]=0.0095M