Use the Nernst equation to calculate Ecell for each of the following cells.

Enter your answer with 3 significant digits.
Enter scientific notation as 1.23E4.

(a) Mn(s) | Mn2+(0.11) M || Cr3+(0.24 M), Cr2+(0.11 M) | Pt(s)

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(b) Mg(s) | Mg2+(0.070) M || [Al(OH)4]–(0.30 M), OH–(0.040 M) | Al(s)

See my response below.

b is cone the same way as a.