pH

 

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pH

Wikipedia

Originally introduced in 1909 by S. P. L. Sørensen, using the notation p_H⁺ for what he called the “hydrogen ion exponent” (Wasserstoffionenexponent ) of a solution. He may have chosen the symbol p arbitrarily; another suggestion is that it abbreviates German Potenz (“power”). The “H” is the international chemical symbol for the element hydrogen.

pH

1. (chemistry) Measure of the acidity (low pH) or basicity (high pH) of an aqueous solution, equal to the negative logarithm of the concentration of hydronium ions in molars

• pOH

pH

1. (metrology) Symbol for picohenry, an SI unit of electrical inductance equal to 10⁻¹² henrys.

• pK

pH

1. Manuel de Codage transliteration of pḥ.