Reaction Kinetics in Blue

Explore the effect of temperature and concentration on the rate of fading of methylene blue.
This video is part of the Flinn Scientific Best Practices for Teaching Chemistry Video Series, a collection of over 125 hours of free professional development training for chemistry teachers - elearning.flinn...
ATTENTION: This demonstration is intended for and should only be performed by certified science instructors in a safe laboratory/classroom setting.
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[@tanita214]

I wish I had a chem teacher like this! two thumbs up!!!

[@lindab6901]

dude! AWESOME! will be assigning my Chem 1B class to watch this while we are all 'sheltering-in-place' during the COVID-19 pandemic .... teaching/learning WILL continue :-)
(then in future semesters, I am going to try what you did with the plates ... students love activities like that)

[@hardikminocha3149]

Very satisfactory demonstration sir. Thank you. It provides a very nice intuition of the physical meaning of chemical kinetics.

[@SuperTechIT]

mistake starts at 5:25 to 5:35 (the MOST in middle, second most in left, and MOST in right flask)....OOPS! Nobody noticed...LOL.

[@richardkeilig4062]

Good job.

[@robertobaldizon8206]

Very nice video. Thanks

[@tannaze2441]

Very nice demonstration, thanks a lot!

[@stoddardtutoring6733]

The colder temperatures will not only cause the rate constant to decrease, but oxygen solubility to increase. Fortunately the change in rate constant dominates and one can omit this detail if desired. There are many details to this reaction.

[@ishaadhawade2953]

amazing video!

[@mira7662]

thanks for the great video

[@huyhungle6062]

amazing video.

[@kingshaban8789]

Fantastic

[@nigahada]

great video!

[@skatiaris21]

reaction is zero order for oxygen but when you shake more and introduce more oxygen it takes more time to decoulorize…any help?

[@ryansanchez9119]

who here from mr i class👀👌🏻💯

[@isaiah5459]

Who’s here from miss Flores class 👀

[@sharonife9994]

you didn't wear a lab coat
😀

[@yousafbodla7266]

Wear gloves

[@Sibasish07]

Very vague explanation

[@chawanezadin4431]

😻😻