Question

Which of the following chemical equations corresponds to the acid ionization constant, Ka, for benzoic acid (C6H5CO2H)?
A.C6H5CO2-(aq) + H3O+(aq) C6H5CO2H(aq) + H2O()
B.C6H5CO2H(aq) + H2O() C6H5CO2-(aq) + H3O+(aq)
C.C6H5CO2H(aq) + OH-(aq) C6H5CO2-(aq) + H2O()
D.C6H5CO2H(aq) + H3O+(aq) C6H5CO2H2+(aq) + H2O()
E.C6H5CO2-(aq) + H2O() C6H5CO2H(aq) + OH-(aq)

Answer

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