Measuring the Reaction Rate of Sucrose Inversion Using a Polarimeter

• Writing Notes

• From Physics IA Reflection, list the tasks and estimate the required time.

• To-do list:

  • Motivation: 0.5 hours
  • Experiment explanation: 2 hours
  • Data processing: 2 hours
  • Graph creation: 0.5 hours
  • Explanation of data processing: 2 hours
  • Evaluation: 1.5 hours You are not logged in to https://gyazo.com If you are already logged in, please enable 3rd party cookies in your web browser settings.

• The current problem is that:

  • I don’t know the correct answer, so I can’t evaluate it.
    • It would be good to know the Activation Energy.
    • I want to find existing sources.
      • https://pubmed.ncbi.nlm.nih.gov/17228904/#:~:text=The%20reaction%20rate%20constant%20of,of%20sucrose%20in%20the%20solution.
      • Looks promising.

• 

• Isomerization and reduction are similar.

• The angle of optical rotation corresponds to rotation=isomerization=inversion.

• https://daitoseito.co.jp/topics/chemical

  • This is informative.

• https://moro-chemistry.org/archives/1350

  • This is also related (connects to SN1,2 reactions and chiral, racemization)

• http://kuchem.kyoto-u.ac.jp/ubung/09jueb/09ju0108a.pdf

  • Heat hydrochloric acid and sucrose solution for 20 minutes.
  • Looks good.
  • https://chemistry.stackexchange.com/questions/35294/why-is-hcl-used-in-hydrolysis-of-sucrose

• http://bigjohn.ce.fukui-nct.ac.jp/butsuka/DT-11/Page-01-ma.html

  • ※In dilute solutions, the hydrogen concentration is considered constant and the hydrogen ion concentration does not change with the progress of the reaction. Therefore, it is proportional only to the concentration of sucrose. In other words, it should be a first-order reaction with respect to sucrose.

• Catalysts for hydrolysis

  • Sulfuric acid, hydrochloric acid, etc.
  • H+ seems to act as a catalyst (such as HCl_aq)

• Personal Engagement

  • I was fascinated to see the various methods of reactions.
    • It sparked curiosity that there might be various other methods.
  • I heard that sugar water polarizes in physics, so it seems feasible.
    • There are existing examples.