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【单选题】
用盐桥连接两只等量 CuSO 4 溶液的烧杯。两只烧杯中 CuSO 4 溶液浓度 分别为 1.00 mol·dm -3 和 0.01 mol·dm -3 , 插入两支电极,则在 25 ° C 电极间的电压为(),已知 j y ( Cu 2+ /Cu ) =0.34 2 V
A.
0.059 V
B.
-0.059 V
C.
0.118 V
D.
-0.118 V
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