What is the concentration of H⁺ in 2.0 M acetic acid,HC₂H₃O₂?

Question

Quizplus · Accepted Answer

Acetic acid, HC2H3O2, is a weak acid that does not completely ionize in solution. The equilibrium expression for its dissociation is:
HC2H3O2 ↔ H+ + C2H3O2-
Therefore, the concentration of H+ in a 2.0 M solution of acetic acid will be less than 2.0 M because only a fraction of the acid molecules will donate a proton to form H+. The exact concentration can be calculated using the equilibrium constant expression, but based on the given options, the answer must be either D or E. However, since we know that the concentration of H+ is less than 2.0 M, the correct answer is D.

What Is the Concentration of H⁺ in 2