2. Consider the reaction of cyanide ion (CN) with water, where cyanide ion is either a weak acid or a weak base. a) Select the correct chemical equation for the acid/base dissociation reaction of cyanide ion in water: OCN- (aq) + H₂O (/) HCN (aq) + H3O+ (aq) OCN- (aq) + H₂O (/) = H₂CN+ (aq) + OH¯ (aq) OCN- (aq) + H₂O (/) = H₂CN+ (aq) + H3O+ (aq) OCN- (aq) + H₂O (/) HCN (aq) + OH- (aq) Incorrect. Tries 3/3 Previous Tries b) The equilibrium expression for this reaction corresponds to: Incorrect Ka Correct: Kb You are correct. Previous Tries Your receipt no. is 152-2641 c) The numerator of the equilibrium expression (from part b) for this reaction is: [HCN ] O[ H₂CN+ ][ OH-] O[OH ][ HCN ] [H₂CN+ ] O[ HCN ][ H3O+] O[H3O+] O[H₂CN+ ][ H3O+] O[OH ][ CN¯ ]

2. Consider the reaction of cyanide ion (CN) with water, where cyanide ion is either a weak acid or a weak base. a) Select the correct chemical equation for the acid/base dissociation reaction of cyanide ion in water: OCN- (aq) + H₂O (/) HCN (aq) + H3O+ (aq) OCN- (aq) + H₂O (/) = H₂CN+ (aq) + OH¯ (aq) OCN- (aq) + H₂O (/) = H₂CN+ (aq) + H3O+ (aq) OCN- (aq) + H₂O (/) HCN (aq) + OH- (aq) Incorrect. Tries 3/3 Previous Tries b) The equilibrium expression for this reaction corresponds to: Incorrect Ka Correct: Kb You are correct. Previous Tries Your receipt no. is 152-2641 c) The numerator of the equilibrium expression (from part b) for this reaction is: [HCN ] O[ H₂CN+ ][ OH-] O[OH ][ HCN ] [H₂CN+ ] O[ HCN ][ H3O+] O[H3O+] O[H₂CN+ ][ H3O+] O[OH ][ CN¯ ]

Chemistry & Chemical Reactivity

9th Edition

ISBN:9781133949640

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter16: Principles Of Chemical Reactivity: The Chemistry Of Acids And Bases

Section: Chapter Questions

Problem 87GQ: Hydrogen, H2S, and sodium acetate, NaCH3CO2 are mixed in water. Using Table 16.2, write a balanced...

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