a 125.0 mg sample of an unknown, monoprotic acid was dissolved in 100.0 ml of distilled water and titrated with a 0.050 m solution of naoh. the ph of the solution was monitored throughout the titration, and the data were collected. determine the ka of the acid and identify the unknown acid.

data-

volume of oh- added (ml), ph:

0, 3.09

5, 3.65

10, 4.10

15, 4.50

17, 4.55

18, 4.71

19, 4.94

20, 5.11

21, 5.37

22, 5.93

22.2, 6.24

22.6, 9.91

22.8, 10.2

23, 10.4