A buffer solution contains 0.1 mol of sodium acetate dissolved in 1000 cm3 of 0.1 M acetic acid. To the above buffer solution, 0.1 mol of sodium acetate is further added and dissolved. The pH of the resulting buffer is equal to _________.

Question

A buffer solution contains 0.1 mol of sodium acetate dissolved in 1000 cm³ of 0.1 M acetic acid. To the above buffer solution, 0.1 mol of sodium acetate is further added and dissolved. The pH of the resulting buffer is equal to _________.

$pK_a$