PH-Wert/en: Unterschied zwischen den Versionen
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| + | The pH value is a measure for the effective H<sup>+</sup> ion concentration and thus for the strength of the [[acidic|acid]] or [ basic]] effect of an aqueous [[solution]]. | ||
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| − | Some mathematics: The pH value corresponds to the negative decadic logarithm of the [[hydrogen ion concentration]], i.e. it is defined as a logarithmic quantity by the decadic logarithm multiplied by -1 (= "ten logarithm") of the [[oxonium]] ion concentration (more precisely: the oxonium ion activity). | + | Some mathematics: The pH value corresponds to the negative decadic logarithm of the [[Wasserstoffionenkonzentration/en|hydrogen ion concentration]], i.e. it is defined as a logarithmic quantity by the decadic logarithm multiplied by -1 (= "ten logarithm") of the [[Oxonium/en|oxonium]] ion concentration (more precisely: the oxonium ion activity). |
| − | + | The term derives from pondus hydrogenii or potentia hydrogenii (lat. pondus, n. = weight; potentia, f. = force; hydrogenium, n. = hydrogen). | |
https://de.wikipedia.org/wiki/PH-Wert <sub>([https://de.wikipedia.org/wiki/Wikipedia:Lizenzbestimmungen_Commons_Attribution-ShareAlike_3.0_Unported Wikipedia CC-by-sa-3.0])</sub> | https://de.wikipedia.org/wiki/PH-Wert <sub>([https://de.wikipedia.org/wiki/Wikipedia:Lizenzbestimmungen_Commons_Attribution-ShareAlike_3.0_Unported Wikipedia CC-by-sa-3.0])</sub> | ||
Aktuelle Version vom 22. Mai 2019, 00:26 Uhr
The pH value is a measure for the effective H+ ion concentration and thus for the strength of the acid or [ basic]] effect of an aqueous solution.
Some mathematics: The pH value corresponds to the negative decadic logarithm of the hydrogen ion concentration, i.e. it is defined as a logarithmic quantity by the decadic logarithm multiplied by -1 (= "ten logarithm") of the oxonium ion concentration (more precisely: the oxonium ion activity).
The term derives from pondus hydrogenii or potentia hydrogenii (lat. pondus, n. = weight; potentia, f. = force; hydrogenium, n. = hydrogen).
https://de.wikipedia.org/wiki/PH-Wert (Wikipedia CC-by-sa-3.0)