How Can I Accurately Measure the Rate of Reaction in Homogeneous Catalysis?

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Discussion Overview

The discussion revolves around methods for accurately measuring the rate of reaction in homogeneous catalysis, specifically focusing on the feasibility of using pH changes versus optical property measurements. Participants explore various experimental approaches and seek suggestions for suitable reactions.

Discussion Character

  • Exploratory, Technical explanation, Experimental/applied

Main Points Raised

  • One participant suggests measuring pH change with a pH meter as a simple approach to determine the rate of reaction.
  • Another participant argues that measuring optical properties may provide more accurate results but acknowledges potential complications, such as maintaining a constant temperature.
  • A different participant points out that if the reaction does not exhibit significant pH changes, alternative methods must be considered, emphasizing the importance of the specific catalyst involved.

Areas of Agreement / Disagreement

Participants express differing views on the feasibility and accuracy of the two proposed methods, with no consensus reached on which method is superior or more appropriate for the experiment.

Contextual Notes

Participants note that the effectiveness of measuring pH changes may depend on the specific reaction and catalyst used, indicating potential limitations in the applicability of the suggested methods.

androol
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I'm studying homogeneous catalysis and reaction kinetics, and I want to conduct an experiment that measure the rate of reaction by either:

1. a pH change​
or
2. consumption or generation of a compound bearing optical properties.​

Which one is more feasible? Hopefully you'll suggest a nice reaction.

What other ways can I experimentally measure the rate of reaction accurately (besides pressure change for 2H2O2 -> 2H2O + O2)?
 
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For option 1) simply measure the pH change using a pH meter, this would probably be the simplest approach.
 
I think measuring the optical properties will be more accurate, but there will certainly be complications involved in keeping the reaction at constant temperature, etc.

so measuring pH change will be more simple. Is there a reaction that comes to your mind?

Thnx in advance for helping me :)
 
not exactly, I though that perhaps this was specified in your assignment. If the reaction does not involve significant trend in pH change, then obviously you'll have to consider another method. It all depends on which catalyst you have in mind or were assigned.
 

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