Question

1.

Answer the following about the titration plot shown below, involving a monoprotic acid and base. 20 mL of 0.1M titrand titrated with 0.1M titrant. Data points at 1 mL increments. 14.0 ܠܬܬܬܬܬܬܬܬܬܬܩ 0.0 10.0 20.0 30.0 40.0 50.0 Volume of titrant (mL) (a) Is the species being titrated an acid or a base? --- (b) Is the species being titrated strong or weak? (c) What is the value of K, (if a weak acid) or Kb (if a weak base) for the species being titrated? If the species is strong (100% dissociated), enter 999.

Answer 1

pH of analyte Solution o equivalence point - half Equivalence point Volume of Titrant added titut - I andyte h Species being tituated - has pH of 3-0 in the starting when no titrant is added) .. pH <7 so it is. an acid & because pH is 3.0 in the starting so it Is a weak acid Weak acid Fixt we My, acid Mave Bax

At half mol HA = equivalence mol A = point lintal mal I of t) so hot] = Ka pH ska مستلقان ابانت عن Half Equivatal point pH w pka -lokat = 4.5 4.5 4.5 0.000034 3-15 X 1o

No ise of m1v1=m2v2

Please ignore that.