How would you write the chemical equation for how the acetate buffer neutralizes excess acid, #H_3O^+#? How do you write the chemical equation for how the acetate buffer neutralizes excess base, #OH^-#?
Well, it is a buffer, the which moderates GROSS changes in
The parent acid undergoes the equilibrium........
And thus if there are significant concentrations of acetic acid, AND acetate ions.......then if there is excess acid......
..........and if there is excess base......
As to the background. The weak acid
As with any equilibrium, we can write the equilibrium expression:
This is a mathematical expression, which we can divide, multiply, or otherwise manipulate PROVIDED that we do it to both sides of the expression. Something we can do is to take
But BY DEFINITION,