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When pH is 1, 2 3 4 5 or 6, it is considered an Acid. When pH is 8 9 10 11 12 13 or 14, it is considered a Base. 7 is the neutral point of acid and base. pH is calculated by the -log (H+)
The pH is measured on a scale of 1 to 14. The higher the pH, the more alkaline (or base) the solution. 1 is the most acidic and 14 the most alkaline. If the pH is 7 it is considered neutral, below this value it is considered acidic and above basic.he pH is measured on a scale of 1 to 14. The higher the pH, the more alkaline (or base) the solution. 1 is the most acidic and 14 the most alkaline. If the pH is 7 it is considered neutral, below this value it is considered acidic and above basic.