what is defination of ph chemistry
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pH means 'POWER OF HYDROGEN.' It is a scale which specify the acidity or basicity of an aqueous solution. It has numbers from 0 to 14. 0-6 are acidic in nature, 7 is neutral and 8-14 are basic in nature. pH scale has no unit. Formula to calculate pH is pH = -log[H+]. This scale is invented in 1909 by Søren Peder Lauritz Sørensen.
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