Answer:
Option B.
Explanation:
The formula of the Kb is written by dividing with the multiplication of the concentration of the products in the numerator, and the multiplication of the concentration of the reactants in the denominator:
[tex]K_b=\frac{\lbrack C_2H_3O_2^-\rbrack *\lbrack H_2O\rbrack}{\lbrack C_2H_3O_2H\rbrack}[/tex]
