Regarding the ion product of water: In an aqueous solution the concentrations of the hydrogen ions and hydroxide are inversely proportional.
Which acid is not produced by the body: Carbonic acid, Sulfuric acid, Ketone bodies, Acetylsalicylic acid, or Lactic acid?
It is derived from the formula for the dissociation constant of a weak acid, expressing it in logarithmic form.
It relates to the pH and pKa and the log of the ration of dissociated to undissociated acid.
To calculate the pKa for a weak acid