Question

Determine the pH during the titration of 31.2 mL of 0.260 M triethylamine ((C2H5)3N , Kb = 5.2×10-4) by 0.260 M HNO3 at the following points.

(a) Before the addition of any HNO3

(b) After the addition of 12.9 mL of HNO3

(c) At the titration midpoint

(d) At the equivalence point

(e) After adding 48.4 mL of HNO3​

Answer 1

Answer:

Determine the pH during the titration of 31.8 mL of 0.235 M trimethylamine ((CH3)3N, Kb = 6.3×10^-5 by 0.235 M HBr at the equivalence point: (Assume ...

Calculate the pH at equivalence point:Reaction:(CH3)3N(aq) + HBr(aq) → (CH3)3NH+(aq) + Br-(aq) base acid conj. acid conj. baseAt the equivalence poin

d) at the equivalence point