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小 發表於 2016-4-10 09:59 PM (第 2931 天)
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Electrochemical seris question please help. Chemical cell
in a chemical cell, there are two solution : potassium iodide, and iron(III) nitrate
i know iodide will release e- by:
2I- --> I2 + 2e-
but why iron (III) accept the e- become iron (II), instead of 2H+ NO3- E- --> NO2 +H2O?
By electrochemical series? or any factor?