The Kb for the ethanoate ion expressed in scientific notions
The Kb for the ethanoate ion (CH3COO-) is usually expressed as a dissociation constant and given by the equation:
CH3COO- + H2O ⇌ CH3COOH + OH-
The Kb is calculated using the concentrations of the products (CH3COOH and OH-) divided by the concentration of the reactant (CH3COO-):
Kb = [CH3COOH] [OH-] / [CH3COO-]
The numerical value of Kb for the ethanoate ion can vary depending on the temperature and concentrations, but it is typically in the range of 10^-9 to 10^-11.