轉學考-普通化學題庫下載題庫

上一題
22. An electrochemical cell consists of a standard hydrogen electrode and a copper metal electrode. What is the potential of the cell at 25℃ if the copper electrode is placed in a solution in which [Cu2+] = 2.5 × 10-4 M. [Note: Cu2+(aq) + 2e- → Cu(s), E0 = 0.34 V]
(A)0.23 V
(B)-0.16 V
(C)0.018 V
(D) 0.26 V
(E)0.059 V


答案:登入後觀看
難度: 適中

10
 【站僕】摩檸Morning:有沒有達人來解釋一下?
倒數 3天 ,已有 2 則答案
Americano 大二上 (2022/01/27):

 E = 0.34 - (0.0592/2) log(1/(2.5x10^(-4)))

     = 0.34 - 0.11
     =0.23

選A
3個讚
檢舉
uu(已上榜) 高三下 (2023/08/23):
5917923-656f3786292b0.jpg#s-1871,960
2個讚
檢舉


22. An electrochemical cell consists of ..-阿摩線上測驗