10. 
    pH
    stands for potential of hydrogen, which is a measure of how acid or alkaline a liquid is. Pure water has a pH value of 7; acids are less than 7; and alkalines are more than 7. See also under Protein.
    Found op http://www.bcpa.co.uk/glossary.htm
    
    
11. 
    pH
    a logarithmic scale (0-14) that reflects acidity or alkalinity; pH 7 indicates neutrality; acidic solutions have lower pH values; alkaline solutions have higher values
    Found op http://www.oasisenviro.co.uk/Glossary%20N%20to%20R.htm
    
    
12. 
    pH
    A scale running from 1 to 14 and used to measure whether a soil is acid, (below pH 7) neutral (pH 7) or alkaline (above pH 7). Most garden soils are within the range of 4.5 to 8
    Found op http://www.encyclo.co.uk/visitor-contributions.php
    
    
13. 
    pH
    A measure of the alkalinity or acidity of a medium. Neutral is represented by 7; with lower figures indicating increased acidity and higher figures, increased alkalinity.
    Found op http://www.encyclo.co.uk/local/20637
    
    
14. 
    pH
    A measure of acidity or alkalinity, pH 7 is neutral, increasing acidity is expressed as a number less than 7; increasing alkalinity as a number greater than 7. The normal pH of blood plasma is 7.35-7.45.
    Found op http://www.felpress.co.uk/Exercise_Physiology_Glossary.24.0.html
    
    
15. 
    pH
    abbreviation: an indicator of the acidity or alkalinity of a substance of solution, represented on a scale of 0-14, 0-6.9 being acidic, 7 being neither acidic or basic (i.e., neutral), and 7.1-14 being basic. These values are based on hydrogen ion content and activity.
    Found op http://www.encyclo.co.uk/visitor-contributions.php
    
    
16. 
    pH
    is the scale for all liquid chemicals. Acids and alkalis are the chemicals at each end of the pH spectrum. The scale runs from 0 (acid) to 14 (alkali). At both ends the chemicals are very reactive and corrosive, but in between or mixed together they become neutral. The most neutral chemical ...
    Found op http://www.epaw.co.uk/EPT/glossary.html
    
    
17. 
    pH
    An acronym for 'potential hydrogen' a measure of acidity. The lower the pH, the higher the acidity.However pH is actually a shorthand for its mathematical approximation: in chemistry a small p is used in place of writing - log10 and the H here represents [H+], the concentration of hydrogen ions.
    Found op http://www.encyclo.co.uk/local/20673
    
    
18. 
    pH
    Measures the acidity of a solution. It is the negative logarithm of the concentrationof the hydrogen ions in a substance. If the hydrogen ion concentration of asolution is 1x10^-n mol litre^-1, then the pH of the solution is n.The lower the pH, the more acid the solution. A pH of...
    Found op http://www.diracdelta.co.uk/science/source/p/h/ph/source.html
    
    
19. 
    pH
    Negative logarithm of the concentration (mol/L) of the H₃O⁺[H⁺] ion, scale is commonly used over a range 0 to 14.
    Found op http://www.allchemicals.info/index/action/detail/keyword/P/id/1059569186.ph
    
    
20. 
    pH
    Acidity and alkalinity of aqueous solutions are axpressed in terms of pH. This is a measurement of the hydrogen ion concentration of the solution. Mathematically it is expressed as:
    Found op http://www.encyclo.co.uk/visitor-contributions.php
    
    
21. 
    pH
    pH is a convenient measure of the acid-base character of a solution, usually defined by pH = -logc(H+) where c(H+) is the concentration of hydrogen ions in moles per liter. The more precise definition is in terms af activity rather than concentration. A solution of pH 0 to 7 is acid, pH of 7 is neut...
    Found op http://www.ktf-split.hr/periodni/en/abc/p.html
    
    
22. 
    PH
    the negative logarithm of the hydrogen ion concentration (-log10[H+]) where H+ is the hydrogen-ion concentration in moles per liter. Neutral water has a pH value of 7.
    Found op http://www.chemicalglossary.net/definition/1240-PH
    
    

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