Do positive hydrogen ions actually exist? #chemistry #shorts #hydrogen #ions

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Three Twentysix Project Leader: Dr Andrew Robertson
Assistant Editor: Purple Saptari
3D animations/production assistant: Es Hiranpakorn
Graphic Design: Maria Sucianto

This video was produced at Kyushu University and supported by JSPS KAKENHI Grant Number JP21K02904. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author and do not necessarily reflect the views of Kyushu University, JSPS or MEXT.

[randomguyplayingminecraft]

I think that is why we sometimes even call it hydronium ion (H3O+)

[freizeitphase]

During the last 2 years of chemistry our teacher told us that it's not actually an H+ in acid dissociation reactions, but H3O+

[isi]

I have one nitpick Yes, H^+ does not exist in free form in wet chemistry, but if you look at space or even just plasma chemistry, it sure does exist.

[Fomites]

I'm 71 and I've wondered about this for about 60 years. :-)

[enotdetcelfer]

Very key insight about charge density and distribution, eye opening

[gangadharhiremath]

Teachers like you will bring more students to chemistry, a wonderful subject.❤❤❤❤❤❤❤❤❤❤

[zack_]

You track the most fundamental building blocks of the universe 👍

[michaelzumpano]

This was a brilliant idea for a short! The only other time I’ve heard this discussed is in the context of water structuring (the old cosmotrope/kaotrope trope).

[pabloveloso]

Ok. That's so obvious that gets me mad that I never thought about it. I will save this clip for the future, when I need to do chemistry classes again.

[BL-xzym]

The fact that you even need to say “reactive” implies a kinetic contribution to the existence of H+. Sure, that rate constant is extremely fast for all the reasons you’ve identified, but we don’t say that things “don’t exist” because they have short lifetimes, we say that they’re transient. It’s entirely possible that the lifetime of a charged proton is so fast we could never hope of seeing it, but again, us not being able to see something because it’s too small, too transient, etc does not mean it does not exist. The entire field of chemistry is a testament to how often “doesn’t exist” doesn’t exist.

[memealert]

recent investigations into the form of solvated protons show that its likely not hydronium (H30+) but rather two water molecules coordinated to the proton (H2O-H-OH2) and other longer chains/webs. This is because the water molecules always interact with each other and they form a network of hydrogen bonds, coordination leads the water molecules to be more polarized which polarizes other water molecules etc. so the actual "proton unit" is impossible to define.

[zacharyleonard]

in Gr12 Chemistry back in highschool we learned that H+ was in the form of hydronium in the case of acids since the H+ sits inside the H20 molecule

[ZenithWest]

The log(H+) is pH used for measuring acids... Another common term (though nowhere as common) is log(H3O+)... Which signifies the H+ is attached to water molecules in the acid... But really we often ignore that fact.

[TW-mi]

A negative H ion would be even weirder

[trcostan]

You know this would have helped so much when I was in college!

[albertobernal]

I love this short video.
Irrelevant addendum:
H+/protons do exist, under room conditions and in solution or gas "suspension", along with free electrons, but during (unimaginably) extremely brief periods of time. Literally, (both are) the most radical of free-radicals you can have.

[cezarcatalin]

Except H+ does exist but only briefly.
When something like acetone carboxylic acid forms a resonance structure where the hydrogen snaps between the carboxylic oxygen and the carbonyl oxygen, there’s a brief period during the transition when it cannot exist in either electron shells and exists as a free proton flying between two oxygen atoms. It’s too brief to participate in any reactions but it does exist as a “naked” proton between two non-intersecting electron clouds.

[JO-mgxc]

Two hydrogen atoms are walking 🚶‍♀️ on the street. One tells the other, “I think I am missing my electron. The other says, are you sure? The first one says “ I am POSITIVE!

[Joshuaskehan-mkcj]

I remember doing chemistry in college (cant remember the exact title of the module) but the teacher went on a rant about how H+ ions and electrons dont actually exist and how its all intermediate molecules and showed us the studies thay proved it for certain reactions but then for others its different, chemistry is wild

[insert_creative_line_here]

I don't actually recall doing any reaction mechanisms where hydrogen is left positive during a whole step now when I think about it.