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电极反应Cr2O72-+14H++6e 2Cr3++7H2O ,已知该电极的标准电极电势Eө =1.23V,如果[Cr2O72-]=[Cr3+] = 1.0 mol•L-1,则当( )时,电极电势E 最大。
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电极反应Cr2O72-+14H++6e 2Cr3++7H2O ,已知该电极的标准电极电势Eө =1.23V,如果[Cr2O72-]=[Cr3+] = 1.0 mol•L-1,则当( )时,电极电势E 最大。
A、pH=7
B、pH=14
C、pH=1
D、pH=0
时间:2021-09-01 23:49
关键词:
青书学堂
齐齐哈尔医学院
无机化学
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D
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在标准条件下,下列反应均向正方向进行Cr2O72-+6Fe2++14H+=2Cr3++6Fe3++7H2O,2Fe3++Sn2+=2Fe2++Sn4+他们中间最强的氧化剂和最强的还原剂是()
电极反应Cr2O72-+14H++6e 2Cr3++7H2O ,已知该电极的标准电极电势Eө =1.23V,如果[Cr2O72-]=[Cr3+] = 1.0 mol•L-1,则当( )时,电极电势E 最大。
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