pH
Measure of the acidity or basicity of an aqueous solution, equal to the negative…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.
» I have a Ph.D.
У мене є докторська ступінь. — deniko
Я кандидат наук. — deniko
CK · Tatoeba · CC BY 2.0 FRMeaning
1 sensesMeasure 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.
(from potential of Hydrogen) the logarithm of the reciprocal of hydrogen-ion concentration in gram atoms per liter; provides a measure on a scale from 0 to 14 of the acidity or alkalinity of a solution (where 7 is neutral and greater than 7 is more basic and less than 7 is more acidic)
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Originally introduced in 1909 by S. P. L. Sørensen, using the notation p_(H⁺) for what heOriginally 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 either an abbreviation of French puissance, German Potenz, Danish potens (“power”) or English potential. The H is the international chemical symbol for the element hydrogen.
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plural: pHsSynonyms
1 synonyms- (from potential of Hydrogen) the logarithm of the reciprocal of hydrogen-ion concentration in gram atoms per liter; provides a measure on a scale from 0 to 14 of the acidity or alkalinity of a solution (where 7 is neutral and greater than 7 is more basic and less than 7 is more acidic):pH scale