pH scale


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pH scale

A 1 to 14 scale that measures alkalinity or acidity: pH7 is neutral, below 7 is acid and above 7 is alkaline.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
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Noun1.pH scale - (from potential of Hydrogen) the logarithm of the reciprocal of hydrogen-ion concentration in gram atoms per literpH scale - (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);
hydrogen ion concentration - the number of moles of hydrogen ions per cubic decimeter
acidity - pH values below 7
alkalinity - pH values above 7
neutrality - pH value of 7
chemical science, chemistry - the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions
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References in periodicals archive ?
The key to good blueberries is soil acidity, which is measured on the pH scale. The pH scale runs from 0 (battery acid) to 14 (lye), with 7 being neutral.
Which property of a solution is measured by the pH scale? 6.
Unfortunately, many traditional cleanser options, like soap and sulphate-based formulas (think: those that lather up easily), can skew high on the pH scale (soap is generally between nine and 10) and strip down the acid mantle.
(Pure water has a neutral pH of 7 on the 0-to-14 pH scale.)
The pH scale is taught to pupils in chemistry labs around the world, but its creator remains a little-known scientist despite his ground-breaking achievement.
The pH scale measures if a substance is acidic, basic (or alkaline) or neutral.
Today explains that it's highest on the pH scale, which is a good thing, as the lower the number, the more acidic the beverage.
In the measurement of pH value for both conventional and Nano fluids shows its acidic nature by its value in pH scale.
Tooth enamel begins to be destroyed when acid levels in the mouth drop below 5.5 on the pH scale.
Also playing is the immense Dubrovnik, pH Scale, and Mac from House Culture.
In case you missed, or forgot, this part of chemistry, here's a quick review: The acidity of any substance is measured on a pH scale, where low numbers are high in acid and high numbers indicate low acidity.
To avoid using such awkward and cumbersome numbers, the Danish biochemist Soren Sorensen devised the pH scale and introduced the pH definition.