1. Apr 29, 2008 #1

   Mantas

   

   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?

    

   Mantas, Apr 29, 2008
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3. Apr 29, 2008 #2

   Borek

   

   Staff: Mentor

   Hint: it is a salt of a strong base and strong acid (HMnO4).

    

   Borek, Apr 29, 2008
4. Apr 29, 2008 #3

   Mantas

   

   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.

    

   Mantas, Apr 29, 2008
5. Apr 29, 2008 #4

   Borek

   

   Staff: Mentor

   pKa = -0.3 (for ionic strength 1.0).

    

   Borek, Apr 29, 2008
6. May 1, 2008 #5

   kalery

   

   it's a highly oxidized salt

    

   kalery, May 1, 2008
7. May 1, 2008 #6

   Borek

   

   Staff: Mentor

   Which doesn't change its pH.
   
   
   
   Buffer Maker

    

   Borek, May 1, 2008

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