What is KMnO4 in Acidified Dilute Form?

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KMnO4 is the molecular formula for potassium permanganate, commonly referred to as acidified dilute potassium permanganate. The discussion raises the question of whether KMnO4 can be considered the salt of a weak acid, HMnO4, and if acidifying a dilute solution would regenerate the acid form. However, it is concluded that the pH of the solution remains almost neutral, indicating that KMnO4 does not convert back to HMnO4 in this context. Additionally, it is clarified that there is no single molecular formula for acidified dilute potassium permanganate since it is a mixture rather than a compound. Understanding these distinctions is crucial for accurate chemical representation.
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is KMnO4 the molecular formula for Acidified dilute potassium permanganate
 
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KMnO4 is potassium permanganate.
 
chopstick:
is KMnO4 the molecular formula for Acidified dilute potassium permanganate?


queenofbabes:
KMnO4 is potassium permanganate.

Another way the question could be asked might be, "Is KMnO4 the salt of a weak acid, HMnO4, and if you acidify a dilute solution of the salt, would this regenerate the acid form?" We have been educated to not think so, but thinking logically, the question seems to be a good one.
 
pKa around -0.3

I would say answer is - no. pH of the solution will be almost perfectly neutral.

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ok... then,
so what should i write for the molecular formula of Acidified dilute potassium permanganate?
 
There is no single molecular formula. This is not a compound - this is a mixture.

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oh oops,
thank you!
 
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