(Diş Hekimliği) 'o' saf asit değerinden '14' saf alkalin yani baz değerine kadar uzanan bir skalada, söz konusu madde içindeki hidrojen iyonu konsantrasyonunu belirten birimin kısaltılması
The negative of the logarithm to the base 10 of the concentration of hydrogen ions, measured in moles per liter; a measure of acidity or alkalinity of a substance, which takes numerical values from 0 (maximum acidity) through 7 (neutral) to 14 (maximum alkalinity)
The pH of a solution indicates how acid or alkaline the solution is. A pH of less than 7 indicates that it is an acid, and a pH of more than 7 indicates that it is an alkali. the pH of sea water Skin is naturally slightly acidic and has a pH of 5.5. Philippines (in Internet addresses). Philippians. a number on a scale of 0 to 14 which shows how acid or alkaline a substance is pH of (potenz + H, sign for hydrogen). Quantitative measure of the strength of the acidity or alkalinity (see acid, base) of a solution. It is defined as the negative common logarithm of the concentration of hydrogen ions [H^+] in moles/litre: pH = -log10 [H^+]. The letters of its name are derived from the absolute value of the power (p) of the hydrogen ion concentration (H). The product of the concentrations in water of H^+ and OH^- (the hydroxide ion) is always about 10^-14. The strongest acid solution has about 1 mole/litre of H^+ (and about 10^-14 of OH^-), for a pH of
The pH value, measured by a pH meter, titration, or indicator (e.g., litmus) strips, helps inform chemists of the nature, composition, or extent of reaction of substances, biologists of the composition and environment of organisms or their parts or fluids, physicians of the functioning of bodily systems, and agronomists of the suitability of soils for crops and any treatments needed. The pH is now defined in electrochemical terms (see electrochemistry)
(chemistry) p(otential of) H(ydrogen); 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 acidic and less than 7 is basic)