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pH is the measure of the acidity or alkalinity pH means the power of Hydrogen. It is 'minus the decimal logarithm of the hydrogen ion activity in an aqueous solution'. The term was coined by Sørensen, it measures the alkalinity or acidity of a liquid. pH is a measure of the concentration of hydrogen ions [H+] in a solution. The concentration of the hydrogen ions is measured in Molarity (M), or moles of H+ ions per liter of solution. The pH is then expressed as the negative log (base ten) of the hydrogen ion concentration. pH = -log[H+] For example, if a solution has a hydrogen ion concentration of 4.75 x 10-5 M (or 4.75 x 10-5 moles of H+ ions per liter of solution), then the pH of the solution would be -log[4.75 x 10-5] = 4.323 pH is generally given on a scale from 0-14, with 0 being the most acidic solution (like HCl) and 14 being the most basic solution (for example, NaOH.), although extreme values may sometimes fall outside that range. Pure water has a pH of 7 because its H+ concentration is 1.0 x 10-7 M -log[1.0 x 10-7] = 7

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Q: What does the term pH mean?
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Related questions

What does the h mean in pH?

In the term "pH," the "H" stands for hydrogen. pH is a measure of the hydrogen ion concentration in a solution, indicating its acidity or alkalinity.


What is the scientific term for pH?

pH is a scientific term, standing for potential hydrogen.


What is the pH of poplar wood?

pH is a term used for liquids.


Who developed pH concept?

The term pH was created by Sorensen in 1909.


Using pH at the beginning of a sentence?

pH is term used in chemistry.


What term best describe the pH scale?

A pH over 7 is basic.A pH=7 is neutral.A pH under 7 is acid.


What Does high pH mean on a pH scale?

A pH over 7 is basic.


Where does the term pH come from?

power of Hydrogen


Who introduced the term pH while working on the methods to improve the quality control of beer?

In 1909 , Sorenson,a Danish biochemist,introduced the term PH.


How blood regulates pH?

The pH of the blood is regulated by short term changes mediated by altering the rate of respiration and on the longer term by filtering of the blood in the kidneys.


Where did the term pH come from?

Possible 'power of hydrogen' as pH refers to the activity of hydrogen ions in a solution.


What is the short term for universal indicator?

pH Scale