[emma.qmc]

So I'm running experiments on catalyzed/uncatalyzed reactions of potassium permanganate with sodium sulfite in basic environment. I saw that the catalysts for this reaction can be iron or cobalt sulfate.

Are any of these catalysts 'better' than the other? Or are there other options?

Thank you!

[Hunter2]

I think you need no catalyst. The reaction takes place also without catalyst.

[emma.qmc]

Yes but my experiment is to determine the activation energy between uncatalyzed/catalyzed reactions at different temperatures. Do you think this would be a good reaction to do so? I looked at the iodine clock but I'm afraid I'll mess it up.

Thank you!

[Hunter2]

I don't think it's a good reaction. What are the products of this reaction.
How do you want to determine the activation energy general and special with this reaction.

[emma.qmc]

What I'm counting on is the colour change from purple to clear. I'll graph the arrhenius graph and then find the activation energy using the gradient.

[Hunter2]

Then go back to school and  learn more about manganese.
In alcaline environment  this reaction is not taking place. You will get black precipitate of manganese dioxide.
Mn VII goes to Mn IV.
Colourless you will get only in acidic environment.
Mn VII goes to Mn II

[emma.qmc]

Oh wait I realized I typed basic, I meant acidic....sorry! But do you think it could work? Again sorry for the typo!

[Hunter2]

The reaction itself works, but how do you want to get the Arrhenius graph?
If you mix the permanganate  with acid and sulfite it change direct colour.