6. A 0.11 M solution of weak acid, HA, has a pH of 4.24. a. Write the dissociation reaction of the acid in water. b. Write the acid dissociation constant expression. c. Given the table below, what is the most probable identity of the acid? K, 3.0 x 10 Acid Hypochlorous acid Nitrous acid Hydrogen cyanide Propionic acid 7.1 x 10 6.2 x 10-10 1.3 x 10 3. Which of the following solutions of monoprotic acids has the HIGHEST concentration of its conjugate? Explain your choice. K 3.5x10 Monoprotic Acid 0.10 M HF 0.10 M HCOOH 0.10 M CH.COOH 0.10 M C.H.COOH 1.8x10 1.8x10- 6.3x10 4. Which of the following is NOT a buffer? Explain your choice. CHNH -CH, NHC NaHSO, -H,SO C.HCOOH - CH.COO KCN - HCN