[Darren]

For the half equation of MnO₄^- to form MnO₂ in alkaline condition, why does the half equation contain hydrogen ions instead, when its supposed to be alkaline condition?

[Hunter2]

Which equation?  It should contain OH^- Ions

[Darren]

MnO₄^- + 4H⁺ + 3e^-  MnO₂ + 2H₂O

[Hunter2]

In alkaline this equation is:

MnO₄^- + 2 H₂O + 3 e^- => MnO₂ + 4 OH^-

[Darren]

From the data booklet, thats the equation i got for alkaline condition.why didnt they put the equation you quotes in the first place since its ald in the alkaline condition? If it is in acidic environment, the equation is totally different and Mn²⁺ is formed instead.

[Hunter2]

I dont know. Maybe write a letter to the writer of the book.

[AWK]

For the half equation of MnO4- to form MnO2 in alkaline condition

MnO₂ is formed in (close to) neutral conditions.

[Hunter2]

Thats correct. Neutral and alkaline Reaction will be treated in same way as alkaline.

[Darren]

Ok thanks guys for the *delete me*