When Iron(II) sulphate solution is mixed with dilute sulphuric acid and a small amount of a purple solution ,a reaction occurs and the oxidation number of iron changes from +2 to +3
(i)Suggest what the purple solution may be
(ii)what would be observed in this reaction ?Write an ionic equation for the reaction involved.
Chem quesion (redox reaction)
2008-08-01 5:46 am
回答 (1)
2008-08-01 6:02 am
✔ 最佳答案
The purple solution is potassium permaganate KMnO4It should be observed that the purple colour fade away and the soluton become slightly yellow.
8H+ + MnO4- + 5Fe2+ --> Mn2+ + 5Fe3+ + 4H2O
收錄日期: 2021-04-25 16:40:45
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