this post was submitted on 27 Jul 2023
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c/TodayILearned

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TIL that the exact meaning of the letter “p” in the pH scale is unknown because the inventor never bothered to explain what it stood for. (en.wikipedia.org)
submitted 1 year ago by PostBot@chat.maiion.com to c/todayilearned@chat.maiion.com
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[–] OtisRamflow@lemm.ee 18 points 1 year ago (2 children)

Hydrogen, pH is "potential of hydrogen" or "power of hydrogen."

[–] WorstPyroEver@lemmy.world 10 points 1 year ago (3 children)

How do you know that?!

[–] Faresh@lemmy.ml 6 points 1 year ago* (last edited 1 year ago)

(Not sure if the humour went over my head and I'm explaining something that wasn't meant to be taken seriously. If it is humour, then I imagine it's because knowing what the H stands for is a lot less exciting than knowing what the p stands for. If it isn't humour, you may read the following words.)

Because that's what it measures. It measures the amount of H⁺ ions (which are simply protons if we are talking about protium which is the most common hydrogen isotope) by volume on a logarithmic scale.

[–] LazaroFilm@lemmy.film 9 points 1 year ago

Probably hydrogen