Question

Degree of dissociation of weak acid formula

Answer 1

Answer:

The dissociation stoichiometry HA → H+ + AB– tells us the concentrations [H+] and [A–] will be identical. Thus [H+] = 10–1.6 = 0.025 M = [A–]. The dissociation fraction α = [A–] / [HA] = 0.025 / 0.75 = 0.033, and thus the acid is 3.3% dissociated at 0.75 M concentration.