A. One beaker contains 10.0 mL ofacetic acid/sodium acetate buffer at maximum buffer capacity (equalconcentrations of acetic acid and sodium acetate), and anothercontains 10.0 mL of pure water. Calculate the hydronium ionconcentration and the pH after the addition of 0.25 mL of
0.10 M HCl to each one. What accountsfor the difference in the hydronium ion concentrations? Explainthis based on equilibrium concepts; in other words, saying that“one solution is a buffer” is not sufficient.
Ka of acetic acid = 1.8 x 10^-5
Acetic acid/sodium acetate buffer
Acetic acid .1M
Sodium acetate .1M
