Which will be the most predominant species in a 0.1 CH₃COOH solution in water? (K_a = 1.8 × 10^-5) A)H₃O⁺ions B)CH₃COO^-ions C)CH₃COOH molecules D)all of the above

Question

Quizplus · Accepted Answer

In a 0.1 CH₃COOH solution, most of the molecules will remain as CH₃COOH since it is a weak acid with a low dissociation constant (K_a = 1.8 × 10^-5). Only a small fraction of CH₃COOH molecules will dissociate into H₃O^{+ and}ions. Thus, the most predominant species in the solution will be CH₃COOH molecules.

Which Will Be the Most Predominant Species in a 0