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Ka and Kb

Q. Autoionization occurs when two solvent molecules collide and a proton is transferred between them. Write the autoionization reaction for water.

Solved • Feb 16, 2020

Ka and Kb

Q. Rank the given acids from the strongest to the weakest acid: HF, HOCl, HNO3, H2O

Solved • Feb 16, 2020

Ka and Kb

Q. One mole of a weak acid HA was dissolved in 1.7 L of solution. After the system had come to equilibrium, the concentration of HA was found to be 0.45 M. Calculate Ka for HA.

Solved • Feb 16, 2020

Ka and Kb

Q. Which is the strongest acid in aqueous solution?

Solved • Dec 13, 2019

Ka and Kb

Q. Which 0.10 M solution will have the largest concentration of hydroxide ion? (A) NH3 (Kb = 1.8 x 10^-5) (B) NaCN (Ka of HCN = 4.9 x 10^-10 (C) NaClO2 (Ka of HClO2 = 1.7 x 10^-4) (D) NaHCO3 (Kb = HCO3^- = 2.3 x 10^-8)

Solved • Dec 13, 2019

Ka and Kb

Q. A 0.135M solution of a weak base has a pH of 11.23. Determine Kb for the base.

Solved • Nov 28, 2019

Ka and Kb

Q. Given 0.01 M solutions of each of the following bases, which solution would have the highest pH? A. Hydrazine, (N2H4), Kb = 1.3 x 10^-6 B. Methylamine, (CH3NH2), Kb = 4.4 x 10^-4 C. Dimethylamine, ((CH3)2NH), Kb = 5.1 x 10^-4 D. Aniline (C6H5NH2), Kb = 3.9 x 10^-10

Solved • Nov 20, 2019