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I’m an H⁺ denier, in that I refuse to consider loose protons to be real hydrogen, so I personally believe it stands for ‘pretend’.
Alt text:
I’m an H⁺ denier, in that I refuse to consider loose protons to be real hydrogen, so I personally believe it stands for ‘pretend’.
They told me at school that ‘p’ meant ‘negative log’. So ‘pH’ means ‘the negative log of the concentration of Hydrogen ions in moles/litre’.
pH 1 is 1 x 10-1 (strong acid)
pH 7 is 1 x 10-7 (neutral)
pH 14 is 1 x 10-14 (alkaline)
(Chemistry was a long time ago, though)
The xkcd breaks it down for us, basically we don’t know because the person who coined the term never specified what it was. It’s either: puissance, potens, or potenz. Which means potency in French,
DutchDanish and German, the three languages the scientists published in.Thank you. I think the decades-old chemistry-class flashback distracted me from thoroughly absorbing the full post!
Dutch and Danish are not the same language. So yeah, the Danish scientist published in Danish, not Dutch.
Can the term potency also be used to refer to the exponent in English? Because that is what is meant by the terms in the other languages and I haven’t come across that usage of the word potency in English
I think that’s accurate, the exponent is what it’s referring to, but the pedantic types are worried about what the p literally means.