The negative logarithm of the molar concentration of hydronium (H3O+) ions.
pH=-log[H3O+]
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Mathematically, never.
Mathematically speaking, it means nothing. FAIRLY EQUAL is not half. Half is EXACTLY equal.
The pH is define in the following way: pH = -log [H+] What that means is the pH is the negative of the base 10 logarithm of the concentration of hydrogen ions in the solution. So, if you have a pH = 0, that means that the concentration of H+ is equal to 1 molar, because -log(1) = 0. If you have a 1 M solution of any strong acid, the pH will be equal to zero.
NO!!!! 12 is GREATER THAN six, but not equal to. Expressed mathematically ' 12 > 6 '.
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