複選題22. The titration curves for two acids (I and II, same sample volume) using the same standardized NaOH solution are shown to the right. Select all correct descriptions regarding the comparison between two acids. (A) Acid I is the stronger acid (B) Acid I has a higher original concentration than acid II (C) Both acids are monoprotic (D) Acid II can be used to prepare a buffer solution I pH II (E) When acid II is titrated to the equivalence point at 25°C, the pH of the solution would be larger than 7