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Acidicity of KMnO4

  • Thread starter Mantas
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  • #1
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How could I estimate the pH of KMnO4 solution (strong oxidizer)? I believe it is neutral, but is that because it takes part in redox reactions and not acid/base or another reason?
 

Answers and Replies

  • #2
Borek
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Hint: it is a salt of a strong base and strong acid (HMnO4).
 
  • #3
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Do you have the Ka value for Permanganic Acid? I'm about 500 miles removed from my CRC. Permanganic acid and the MnO4- salts are not on any of my reference materials as being a strong/weak anything. I do know that MnO4- is a great oxidizer though.
 
  • #4
Borek
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28,326
2,713
pKa = -0.3 (for ionic strength 1.0).
 
  • #5
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it's a highly oxidized salt
 
  • #6
Borek
Mentor
28,326
2,713

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