Problem:  A monoprotic acid, HA, is dissolved in water: HA + H2O ⇋ H3O+ + A-The equilibrium concentrations of the reactants and products are [HA] = 0.230 M[H3O+] = 2.00x10-4 M [A-] = 2.00x10-4 MCalculate the Ka value for the acid HA.

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 A monoprotic acid, HA, is dissolved in water: 

HA + H2O ⇋ H3O+ + A-

The equilibrium concentrations of the reactants and products are 

[HA] = 0.230 M

[H3O+] = 2.00x10-4

[A-] = 2.00x10-4 M

Calculate the Ka value for the acid HA.


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