Consider the Following Information About the Diprotic Acid Ascorbic Acid

question 93

Multiple Choice

Consider the following information about the diprotic acid ascorbic acid (H₂As for short, molar mass = 176.1) . The titration curve for disodium ascorbate, Na₂As, with standard HCl is shown below:
-Which of the following is a major species present at point IV?

• A) As^2-
• B) H⁺
• C) H₂As
• D) HAs^-
• E) none of these

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