ph
ph defined in 1951 year
ph - pH;ph - A quantitative expression for acidity or alkalinity of a solution, i.e. concentration of hydrogen or hydroxyl ions. Scale ranges from o to 14, pH 7 being neutral, less than 7 acid, more than 7 alkaline. Concentration of hydrogen or hydroxyl ions increases or decreases ten times for each unit of change pH. Theoretically pH= -log(cH), where cH is the concentration of hydrogen ions in grams per litre.
near ph in Knolik
| petiole | home letter "P" start from "PH" | phaeophyta |
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