CoHsOH(ag) + H2O0 → CaHsO(aq) + H3O*@g K= 1.12 x 1010 (a) Phenol is a weak acid that partially dissociates in water according to the equation above. Write the equilibrium-constant expression for the dissociation of the acid in water. (b) What is the pH of a 0.75 M CəHsOHca) solution? (C) For a certain reaction involving CeHsOH(a9) to proceed at a significant rate, the phenol must be primarily in its deprotonated form, CaHsO°(a). In order to ensure that the CgH;OH(a9) is deprotonated, the reaction must be conducted in a buffered solution. On the number scale below, circle each pH for which more than 50 percent of the phenol molecules are in the deprotonated form (CaHsO¨(aq). Justify your answer. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Justification: (d) CaHsOH(@g) reacts with NaOH(a). Write a net ionic equation representing this reaction (aka: invasion equation). (e) What is the pH of the resulting solution when 30 mL of 0.40 M CəHsOH(a9) is added to 25 mL of 0.60 M NAOH. Show all work for full credit.
CoHsOH(ag) + H2O0 → CaHsO(aq) + H3O*@g K= 1.12 x 1010 (a) Phenol is a weak acid that partially dissociates in water according to the equation above. Write the equilibrium-constant expression for the dissociation of the acid in water. (b) What is the pH of a 0.75 M CəHsOHca) solution? (C) For a certain reaction involving CeHsOH(a9) to proceed at a significant rate, the phenol must be primarily in its deprotonated form, CaHsO°(a). In order to ensure that the CgH;OH(a9) is deprotonated, the reaction must be conducted in a buffered solution. On the number scale below, circle each pH for which more than 50 percent of the phenol molecules are in the deprotonated form (CaHsO¨(aq). Justify your answer. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Justification: (d) CaHsOH(@g) reacts with NaOH(a). Write a net ionic equation representing this reaction (aka: invasion equation). (e) What is the pH of the resulting solution when 30 mL of 0.40 M CəHsOH(a9) is added to 25 mL of 0.60 M NAOH. Show all work for full credit.
Chapter14: Acids And Bases
Section: Chapter Questions
Problem 8RQ: For conjugate acidbase pairs, how are Ka and Kb related? Consider the reaction of acetic acid in...
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