Hydrogen Peroxide Analysis

Redox titration to determine the percent hydrogen peroxide in a drugstore chemical.
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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[@BenPaulsonISM]

Hey Bob Lewis! You were my high school chemistry teacher at DGN in 1999! Now I'm a high school chemistry teacher too :)

[@taylorbell1649]

This comment was cute.. sorry

[@WardXmodem]

I have some "old" H2O2, I know, because the square brown bottle is "bloated", but I'd like to titrate to see. I have KMnO4, but the vid didn't help with the math. For ex. 10 drops -- or say 1/2ml of H2O2, would take what weight of KMnO4 to come out to 3%? I'm 74, and tho I have a BA in Chem, it has just been too long.

[@jhyland87]

This guy _loves_ his transfer pipettes... lol

[@anilkumarsharma8901]

Mix hydrogen peroxide and dettol??? What happened??

[@anilkumarsharma8901]

Cost of making hydrogen peroxide per liter???

[@RavenDTaylor]

OMG, molamity! I love this. I prefer to do everything by mass when possible, and up until now I've mostly used mass fraction for labeling solutions and doing gravimetric titrations. I will henceforth be using molamity. But not that deformed M symbol. FYI, I looked it up, other sources are defining molamity as moles solute per kilogram solution, not per gram solution.

[@tomhendry1]

Excellent video. Thanks, Bob! I am working on producing a nanosilver H2O2 solution to be used in dry fogging for sterilization of medical facilities. I am experimenting with trying to stabilize 35% H2O2 with atomic silver nanoparticles. I need a quick reference as to the O2 that has been lost. Thanks, again. The video answered my questions. I'm going to weigh the mass before and after. Perfect! I love a small scale, quick referencing method.

[@Glaudge]

What is the chemical equation for this? H2O2 and KMnO4 are both oxidizers, so which species gets reduced?

[@TheChemistryShack]

Glaudge The equation (unbalanced) is: H(+) + MnO4(-) + H2O2 -> H2O + Mn(2+) + O2 The MnO4(-) is the stronger oxidizer (higher standard reduction potential), so the Mn gets reduced from +7 in the permanganate to +2 in the Mn(2+). The H2O2 is the stronger reducing agent (lower standard electrode potential), so the Oxygen gets oxidized from -1 in the permanganate to +0 in the O2 gas.

[@md.litonmondal2640]

আমি হাইড্রোজেন পানিতে মিক্সড করাত পর, কতদিন পরযন্ত বোতল এ রাখত পারব ?

[@zoghunter82318]

Fkn babblers man...

[@nageswarankayaluhindiraju9841]

Porus all gaya hai sollu sollu