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pH |
  
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pH |
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Definition pH is the negative logarithm of the hydrogen ion concentration in solution. Description A measure of the acidity or alkalinity of a solution, numerically equal to 7 for neutral solutions, increasing with increasing alkalinity and decreasing with increasing acidity. The pH scale ranges from 0 to 14. Why is pH important? pH gives an indication of the acidity or alkalinity of groundwater.
Source: http://www.fatalii.net pH guidelines
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