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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+)
So pH is typically considered to measure acidity. On the pH scale, most common substances have pH values between 0 and 14. Neutral water, where the hydrogen ion concentration is balanced with hydroxide ion concentration, has a pH value of 7...