How do you relate ph to the dissociation process?

Question

Help me Please!

Answer 1

pH is defined as the negative logarithm of hydrogen ion concentration. or pOH is defined as the negative logarithm of hydroxyl ion concentration.  Therefore for a given substance the hydrogen ion concentration or hydroxyl ion concentration is to be found.  Or simply the acidity of a base or basicity of an acid is being multiplied by its concentration i.e. molarity. For an acid or a base the dissociation constant is calculated from their degree of dissociation and their concentration. (Ostwald process).  Therefore pKa = -logKa or pKb = -log Kb.  where Ka and Kb are the dissociation constant of an acid or a base.  Great ed the dissociation constant smaller the pKa or pKb values hence stronger the acid or base.