Question 9 From the equilibrium concentrations given, calculate Ka and Kb HNO2:[H30*) = 0.011 M; (NO2"]...
From the equilibrium concentrations given, calculate Ka for each of the weak acids and Kb for each of the weak bases. (a) HCH3CO2: [H3O+ ] = 1.53 ✕ 10−3 M, [CH3CO2− ] = 1.53 ✕ 10−3 M, [HCH3CO2] = 0.138 M (b) ClO−: [OH − ] = 2.51 ✕ 10−4 M, [HClO] = 2.51 ✕ 10−4 M, [ClO− ] = 0.250 M
Calculate the pH of a 0.400 M HNO2 solution. Report answer to 2 decimal places. Ka = 7.1 x 10-4 HNO2 (aq) + H20 (1) = NO2 (aq) + H30+ (aq) Calculate the pH of a solution consisting of 0.225 M solution of CH3NH2 (methylamine) and 0.200 M CH3NH3 (methylammonium chlorides Report answer to 2 decimal places. CHH) - 4.4 x 10-4 CH3NH2 (aq) + H200 - Chynas (aq) + OH" () 1. Questa
Calculate the equilibrium concentrations of all chemical species present in a 0.10 M H CO.(aq) solution. What is the percent ionization of the acid and resulting pH? Units Units [H2CO3) = Number [HCO3) = Number [CO32) = Number [H30+) = Number Units Units % ionization = Number pH = Number Ka Acid Acetic Ammonium Formula CH3COOH NH4+ H3B03 1.8 x 10-5 5.6 x 10-10 5.4 x 10-10 Boric Carbonic H2CO3 Chlorous Formic Hydrocyanic Perchloric HCIO2 HCOOH HCN HC104 4.5 x...
Question 16 of 24 Determine the pH of a buffer that is 0.55 M HNO2 and 0.75 M KNO2. The value of Ka for HNO, is 6.8 x 10-4 1 2 3 NEXT Based on the given values, set up ICE table in order to determine the unknown. HNO3(aq) + H2O(1) H,O*(aq) + NO, (aq) Initial (M) Change (M) Equilibrium (M) RESET 2x 0 0.55 0.75 6.8.10 0.55. 2x 0.56 - 2x 0.75 + x 0.75 - X 0.55 -...