(Solved): 16. Explain the role of a buffer in acid-base equilibrium. Consider the following acid-base equilib ...

16. Explain the role of a buffer in acid-base equilibrium. Consider the following acid-base equilibrium to help formulate your answer, using diagrams where appropriate. CH?COO (aq) + H?O CH?COOH(aq) + H?O) (4 marks) (aq) + 17. Sodium acetate CH?COONa is the sodium salt of acetic acid. It is widely used in industries to neutralize strong acids because it is cheap and easy to produce. Find the value of the base dissociation constant K of acetate ion given K for acetic acid is 1.81x 105. Then calculate the pH of a solution that contains 12.5g of sodium acetate dissolved in IL of water. (8 marks)