7. 一計算機有 64MB 記憶體，每一字組是 4 個位元組，需要多少位元才能定址記憶體中的每一個字組？(15 分)

7. For the following cell: Cu(s)|Cu2+(0.0250M)||Fe3+(0.150M), Fe2+(0.0380M)|Pt(s). E0(Cu2+→Cu) = 0.34 V, E0(Fe3+→Fe2+) = 0.77 V (10 points)(A) Write the oxidation and reduction half-reactions.(B) Calculate the cell potential, Ecell at 25oC, and tell if the cell reaction is spontaneous.