IONIZATION OF WATER

• Autoionization of Water


  It is exhibited by water molecules to which the results to the transfer of a proton to another water molecule
• pH


  It is the measure of concentration of free protons in a solution; defined as negative logarithm
• Neutral


  Solutions at pH = 7.0
• Acidic


  Solutions that have low pH
• Basic


  Solutions that have high pH
• Acids and Bases


  Occur when substances are dissolved in water
• Equilibrium


  It is maintained when acid/base dissolves in water
• Henderson-Hasselbalch Equation


  The equation that summarizes the relationship of pH and pKa
• pKa


  An intrinsic property of the substance
• Titration Curve


  In an acid, the pKa is located where the slope of the curve is at zero
• Buffering Region


  It is located at +-1.o pH unit from the pKa; drastic changes in pH are also not observed
• Titration


  It is the continuous addition of a known concentration of acid/base while pH is measured
• Experimentally


  It is how the buffering region of a pH is determined by titration
• Polyprotic Acids


  Substance with multiple buffering regions