# Measuring change in concentration of hydrogen peroxide

I am conducting an experiment to find the rate constant of the decomposition of hydrogen peroxide, $$\ce{H2O2}.$$ For this, I was planning on using the integrated rate law:

$$\ln(\text{final concentration}) = -kt + \ln(\text{initial concentration})$$

However, I am not sure how I can measure the change in the concentration of $$\ce{H2O2}.$$ I would appreciate it if someone can propose a method.

• Typically you measure the volume of evolved O2. – Ivan Neretin Aug 15 at 11:34
• After that, what should I do? – A M Aug 15 at 13:32
• Then calculate the concentration of H2O2 from these data. – Ivan Neretin Aug 15 at 13:38
• Alternatively, if you want to work with liquid, you could do titrations by sampling the solution over time. titrations.info/permanganate-titration-hydrogen-peroxide – The_Vinz Aug 15 at 15:31