Question- Determine the unknown quantity (?) for the following electrochemical cells.
a) Sn(s) + 2H+(pH = ?) ? Sn2+(0.25 M) + H2(0.50 atm) Ecell = 0.0493 V
b) Pt?Fe2+(0.250 M), Fe3+(0.168 M)??Pd2+(0.0127 M)?Pd(s) Ecell = ?
I am not able to solve the above problem somebody help me to get the correct answer