pH scale

A 1 to 14 scale that measures alkalinity or acidity: pH7 is neutral, below 7 is acid and above 7 is alkaline.

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Noun

pH 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.

TRUE BLUES: Unlock the mysteries of growing blueberries, and reap the bounty of this finicky fruit that has eluded gardeners for centuries

Which property of a solution is measured by the pH scale? 6.

QUIZ

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.

Are you overwashing your face?

(Pure water has a neutral pH of 7 on the 0-to-14 pH scale.)

From A2 milk to vitamin K2: What to make of the latest claims?

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.

Who was SPL Sorensen? Google Doodle celebrates Danish chemist who invented pH scale measuring acidity and alkalinity; The chemist's scale is important in fields including chemistry, medicine and water treatment

The pH scale measures if a substance is acidic, basic (or alkaline) or neutral.

Akaline water and guarana supplements

In the measurement of pH value for both conventional and Nano fluids shows its acidic nature by its value in pH scale.

Stability analysis of MWCNT with distilled water as a base fluids

Tooth enamel begins to be destroyed when acid levels in the mouth drop below 5.5 on the pH scale.

Coca-Cola's truck 'is bad for your health' EXPERT BLAMES FIZZY DRINKS FOR CHILD OBESITY AND TOOTH DECAY

Also playing is the immense Dubrovnik, pH Scale, and Mac from House Culture.

MASH HITS WITH MASH

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.

What you can, and can't, can

To avoid using such awkward and cumbersome numbers, the Danish biochemist Soren Sorensen devised the pH scale and introduced the pH definition.

Acid-base concepts and the Henderson-Hasselbalch equation