Select from the response list for the acid that best fits the description: a diprotic weak acid. A) HCl B) HC₂H₃O₂ C) H₂C₃H₂O₂ D) H₂SO₄

Question

Quizplus · Accepted Answer

A diprotic weak acid is an acid that can donate two hydrogen ions (protons) when dissolved in water, but is not completely dissociated. Option C, H₂C₃H₂O₂ (also known as phosphoric acid), fits this description as it can donate two protons but will not completely dissociate in water. Option A, HCl, is a strong acid and only donates one proton. Option B, HC₂H₃O₂, and option D, H₂SO₄, are not even valid chemical formulas for any known acid.

Select from the Response List for the Acid That Best