Potassium Permanganate Reduction in Aqueous Buffer

AI Thread Summary
Potassium permanganate can be reduced to insoluble manganese dioxide in an aqueous buffer of ammonia and ammonium when treated with sodium hypochlorite, which is oxidized to perchlorate ion. The discussion raises a question about the pH of the solution, as the notes indicate it is acidic despite the use of a buffer that should maintain neutrality. Concerns are expressed about the role of the buffer and the basic nature of hypochlorite as a weak Bronsted-Lowry base. The possibility of an error in the notes is also suggested. Clarification on the pH behavior in this reaction is sought.
Kruz87
Messages
16
Reaction score
0
Hello everybody,
I'm told that potassium permanganate is dissolved in an aqueous buffer of ammonia and ammonium at equal concentrations (1M), and treated with 1M sodium hypochlorite, the permanganate ion is reduced to insoluble manganese dioxide as the hypochlorite ion is oxiddized to perchlorate ion.

I have the notes to the solution of the problem, but I noticed that he considered the solution to be acidic?

Why?
The buffer should have no affect on pH and OCl^- is a weak bronstend lowry base. So why wouldn't the solution be basic?
 
Physics news on Phys.org
I don't know why. Could it be there's a mistake in the notes?
 

Thread 'Prove that evolution is constant (Provide at least two arguments to support your position)'

I don't get how to argue it. i can prove: evolution is the ability to adapt, whether it's progression or regression from some point of view, so if evolution is not constant then animal generations couldn`t stay alive for a big amount of time because when climate is changing this generations die. but they dont. so evolution is constant. but its not an argument, right? how to fing arguments when i only prove it.. analytically, i guess it called that (this is indirectly related to biology, im...
View full post »

Similar threads

Chemistry Are there typos in this snippet causing confusion?
Replies
2
Views
1K
Chemistry Understanding how to calculate pH of a buffer solution
Replies
2
Views
1K
Create Buffer: Sodium Citrate & Citric Acid
Replies
1
Views
2K
Chemistry-potassium permanganate lab
Replies
3
Views
8K
Determining the Most Effective Buffer Solution for pH Stability
Replies
2
Views
3K
Comparing the pH of H2CO3 and H2SO4 Solutions
Replies
3
Views
4K
Help with Biochemistry Homework: Formic Acid, pH & Buffer Solutions
Replies
3
Views
3K
Aqueous equilibria, buffered solutions
Replies
5
Views
2K
How to determine if the mixing of two solution would result in buffer solution?
Replies
3
Views
50K
Solve Ka2 of Sulfuric Acid in Aqueous Solution
Replies
2
Views
15K

Hot Threads

Recent Insights

Back
Top