Help Needed: Activation Energy for KMnO4 + H2C2O4 Reaction

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SUMMARY

The discussion centers on determining the activation energy for the reaction between potassium permanganate (KMnO4) and oxalic acid (H2C2O4). Participants emphasize the importance of obtaining this value through experimental data rather than external sources, labeling the latter as "cheating." A formula relating activation energy to the rate of reaction is suggested as a legitimate method for calculation using available lab data. The community strongly advises against seeking shortcuts in academic settings.

PREREQUISITES
  • Understanding of chemical kinetics
  • Familiarity with activation energy concepts
  • Knowledge of reaction rates and their calculations
  • Experience with laboratory procedures in chemistry
NEXT STEPS
  • Research the Arrhenius equation for calculating activation energy
  • Study the relationship between reaction rates and temperature
  • Explore laboratory techniques for measuring reaction rates
  • Review academic integrity policies regarding experimental data
USEFUL FOR

Chemistry students, educators, and researchers involved in kinetics studies or laboratory experiments focused on reaction mechanisms and activation energy calculations.

eku_girl83
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Plea for help with kinetics lab -- Urgent

I am trying to find a value for the activation energy of the reaction involving potassium permanganate and oxalic acid. I have scoured every free chemistry database on the internet and come up with nothing. Does anyone know how I can calculate this value without using experimental data? Or is there a book that I can find in the library that would contain it? If anyone has access to information I don't, could you please look up this value for me?

This is extremely important.

Thanks!
 
Chemistry news on Phys.org
Does this work?

http://colossus.chem.umass.edu/genchem/chem112/112_Experiment_4.htm
 
Last edited by a moderator:
Don't you have to determine the E(act) from the lab ? Wouldn't getting it from outside be "cheating" ?
 
Hey, Gokul is right -- It would be cheating... If you are asked to do the experiment and find it this way, don't try anything else. This is strongly discouraged in PF community. The link I gave you again involves lab procedure, if I'm not wrong.
 
eku_girl83 said:
I am trying to find a value for the activation energy of the reaction involving potassium permanganate and oxalic acid. I have scoured every free chemistry database on the internet and come up with nothing. Does anyone know how I can calculate this value without using experimental data? Or is there a book that I can find in the library that would contain it? If anyone has access to information I don't, could you please look up this value for me?

This is extremely important.

Thanks!

Why do you want to find out the Activation energy without using experimental data? If you are indeed doing a lab, you should just use only the values available to you, since the teachers wouldn't expect you to be perfect...

As a matter of fact, there is a formula that relates activation energy to the rate of reaction, thus you can determine the activation energy just from your own data. Please explain yourself further before i can give you the formula. I am not sure if I am suppose to or not from the posts by Goku and Chem_tr
 

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