As a chemistry teacher who regularly ignites Hydrogen gas, I cannot even imagine how dangerous it would be to ignite a hydrogen belch. That shit POPS.
Comment on Apart, low in cholesterine
Kolanaki@pawb.social 5 days ago
I have to assume it’s just made sparkling with hydrogen instead of carbon dioxide. Heard about beer being hydrogenated in Japan several years ago and it had the side effect/party trick of being able to ignite your burps.
wolframhydroxide@sh.itjust.works 5 days ago
Kolanaki@pawb.social 5 days ago
Actually why it was news; some dude got drunk, belched fireballs at people and burnt the shit out of his esophagus.
wolframhydroxide@sh.itjust.works 5 days ago
That’s more like it.
icelimit@lemmy.ml 5 days ago
Dissolved hydrogen is effectively acidifying it, no? That would be chugging fizzing acid. Must’ve been fun.
Kolanaki@pawb.social 5 days ago
You get carbonic acid when carbonating water and some people like that taste, for some reason 🤷♂️
grue@lemmy.world 5 days ago
I’m one of those people but I couldn’t tell you why either. I just like sour, I guess.
icelimit@lemmy.ml 5 days ago
Carbonic acid is a weak acid, so the acidity isn’t as strong. Most the protons are bound in carbonic acid. Whereas in dissolved hydrogen, all the hydrogen molecules are necessarily ionized, giving what should be an acid quite some orders stronger.
wolframhydroxide@sh.itjust.works 5 days ago
Chemistry teacher here. No way do those hydrogen molecules ionize. If they ionize, that would require making the entire solution positively charged, or filled with singlet hydrogen. Just like dissolving oxygen of nitrogen in water, the gas will dissolve, but not dissociate.
wolframhydroxide@sh.itjust.works 5 days ago
Chemistry teacher here! Hydrogen would only acidify it if it dissociated. Much like how you can dissolve oxygen or nitrogen gas into water, any gas can be dissolved into water. They don’t break apart, they just float as molecules inside the water. It’s just like when sugar dissolves. Salt breaks apart, because it’s ionic. Sugar, most organics, and diatomic gases like H~2~, N~2~, and O~2~ don’t have enough affinity with the water molecules to dissociate (or, at least, not sufficient to dissociate appreciably)
When you get something gnarly is if you have a molecule containing something that does have stronger affinity with the water. Carbon Dioxide, Sulfur Di- and Trioxide, Nitrogen Oxides, and other oxygen-bearing covalent gases react with water because the central atoms attract the oxygen in the H~2~O, while the oxygens surrounding them have partial negative charges from the unpaired electrons, attracting the hydrogens in the water. This causes the water to be ripped apart, creates oxyanions such as CO~3~^2-^, SO~3~^2-^, SO~4~^2-^, NO~2~^-^, or NO~3~^-^. Same goes for elemental Chlorine, Fluorine and Bromine. All of these rip the water apart and create the hypo- oxyacid and the hydroacid of the specie (e.g. Cl~2~ + H~2~O --> HClO + HCl)
Revan343@lemmy.ca 5 days ago
What if we leave out the electrons, and just add hydrogen ions, aka good old naked protons? Might be tricky mixing them in before they pull free electrons from wherever, but if
they’re high enough energywe’re fast enough…ZoteTheMighty@lemmy.zip 5 days ago
Most soda has a pH of like 3, so probably can’t be muchh worse.
icelimit@lemmy.ml 5 days ago
Turns out solubility of hydrogen is quite low (to be expected) so it’s unlikely enough hydrogen would dissolve to burn a hole in a tongue.
antler@feddit.online 5 days ago
No, dissolved hydrogen (gas) doesn't spontaneously dissociate into when dissolved in water because it's covalently bonded; it remains H2, just like nitrogen remains N2 when dissolved in water. Acidity is a measure of the concentration* of H+, so dissolving H2 doesn't impact the acidity.
*actually the activity
icelimit@lemmy.ml 4 days ago
Thanks, I never understood - what’s the practical difference between pH and activity?
antler@feddit.online 4 days ago
pH is the negative of the (base 10) logarithm of the activity of H+: pH = -log10~(a~H+)
If you mean "what's the difference between concentration and activity," activity is the "effective concentration" of a species. For ideal solutions, activity is equal to concentration. For real solutions, interactions between the components in the solution may cause a species to "act" like it is more or less concentrated.
Dilute solutions at standard conditions are close to ideal: activity is about equal to concentration. But consider a concentrated solution of a salt: the activity will tend to be lower than the concentration because the cations and anions are not completely independent as in an ideal solution, but tend to "shield" each other due to electrostatic forces.