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2020-08-31View Original

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选择题:在铜锌原电池中,将铜电极的c(H+)由1molL-1增加到2molL-1,则铜电极的电极电势() A.变大; B.变小; C.无变化; D.无法确定。 答案:C 提示:能阐述出解题过程的给予额外奖励,答案回复可见
Reply #22020-08-31
答案:C   解析:铜电极的电极反应为:Cu2++2e-=Cu,氢离子没有参与反应,所以铜电极的电极电势不受氢离子影响。
Reply #32020-08-31
C 铜电极的电极反应为:Cu2++2e-=Cu,氢离子没有参与反应,所以铜电极的电极电势不受氢离子影响。

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