Using an ICE chart, calculate the equilibrium concentration of H 3 O + for a weak acid HA with initial concentration 0.1 M and K a = 1.0 x 10 -5 .

Ka and Kb of compounds

8. Monoprotic Acid-Base Equilibria / Ka and Kb of compounds / Problem 4

Problem 4

Using an ICE chart, calculate the equilibrium concentration of H₃O⁺ for a weak acid HA with initial concentration 0.1 M and K_a = 1.0 x 10^-5.

[H₃O⁺] = 1.0 x 10^-5 M

[H₃O⁺] = 1.0 x 10^-3 M

[H₃O⁺] = 1.0 x 10^-4 M

[H₃O⁺] = 1.0 x 10^-2 M