2. a) Calculate the pH of 0.12 mol/L ethanoic acid (K₂ = 1.7 x 105 mol/L). b) Calculate the mass of sodium ethanoate (CH3COONa) which must be added to 500 mL of the solution to give a buffer solution of pH = 4.60. c) Calculate the pH of this solution after 0.01 moles of HCI are added.

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Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.