Question

(1) Determine the pH during the titration of 58.4 mL of 0.386 M hypochlorous acid (K_a = 3.5×10^-8) by 0.386 M NaOH at the following points.

(a) Before the addition of any NaOH

(b) After the addition of 15.0 mL of NaOH

(c) At the half-equivalence point (the titration midpoint)

(d) At the equivalence point

(e) After the addition of 87.6 mL of NaOH

(2)

Determine the pH during the titration of 39.1 mL of 0.369 M ethylamine (C₂H₅NH₂ , K_b = 4.3×10^-4) by 0.369 M HNO₃ at the following points.

(a) Before the addition of any HNO₃

(b) After the addition of 13.9 mL of HNO₃

(c) At the titration midpoint

(d) At the equivalence point

(e) After adding 59.8 mL of HNO₃

Answer 1

According to rules and regulations , only first 4 subparts can be Answered.

Thank you.