B4 (20) A 40.0 ml. sample of 0 too Mlactic acid (HCH o, was titrated with Nao tion of unknown oo construct a pil-1itration curve. The titration-pll curve indicated that l the titration required 28.6 ml. of NaOH solution to reach the he titration midpoint (i e aner la mt, of Naoll wai added)the resulting equivalent point solution has pH 3 R5. and NaOH
