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Calculate the n-factor of K2MnO4 in acidic medium

5 Answers

1
Bicchuram Aveek ·

someone plzz help me within the next 3 hrs.

1
mentor_Adil Hayat ·

MnO4– + 8H+ + 5e– → Mn2+ + 4H2O.

So the n factor is 5

1
aieeee ·

r u sure mentor sir ?

i thought this way.
this is the general equation.

3 K2MnO4 + 2 H2O → 2 KMnO4 + MnO2 + 4 KOH

now, here Mn (+6) changes to Mn(+7) and Mn(+4). So, change in oxidation state is 1 and 2 respec.

so , equivalent weight = M / 1 + M / 2 = 3M / 2 = M / (2/3).

thus, the n-factor is 2/3.

1
prateek punj ·

ur right aieee.....

mentor ur answer is for KMnO4

1
mentor_Adil Hayat ·

ohh ya sorry i wrote it for KMNO4

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