This is also where the word “acid” comes from it is derived from the Greek word “oxein” which in Latin is “acere,” meaning “to make sour.” It was also noted that acids and bases could color certain substances. The first notion of acids comes from ancient Greece, where people noticed that some substances tasted sour. This realization came gradually and under different names.
Both pH and pK a are essential for understanding the behavior of chemical substances in everyday life. The related concept of the acid dissociation constant (pK a) as a substance property is recognized as being among the most commonly used parameters in modern-day chemistry. 1– 3 By now, accurate and precise determination of pH seems to have few secrets left. The centennial of the concept and of the quantitative measurement of pH was celebrated not long ago.
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