Ascorbic acid, H₂C6H6O6, is a diprotic acid usually known as vitamin C. For this acid, pKa1 is 4.10 and pka2 is 11.79. When 125 mL of a solution of ascorbic acid was evaporated to dryness, the residue of pure ascorbic acid had a mass of 4.33 g. * Your answer is incorrect. Calculate the molar concentration of ascorbic acid in the solution before it was evaporated. i 0.145 Hint * Your answer is incorrect. What was the pH of the ascorbic acid solution before it was evaporated? pH = What was the concentration of the ascorbate ion, C6H₂O2, before the solution was evaporated? i M Hint M

Ascorbic acid, H₂C6H6O6, is a diprotic acid usually known as vitamin C. For this acid, pKa1 is 4.10 and pka2 is 11.79. When 125 mL of a solution of ascorbic acid was evaporated to dryness, the residue of pure ascorbic acid had a mass of 4.33 g. * Your answer is incorrect. Calculate the molar concentration of ascorbic acid in the solution before it was evaporated. i 0.145 Hint * Your answer is incorrect. What was the pH of the ascorbic acid solution before it was evaporated? pH = What was the concentration of the ascorbate ion, C6H₂O2, before the solution was evaporated? i M Hint M

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter15: Additional Aqueous Equilibria

Section: Chapter Questions

Problem 105QRT: Apatite, Ca5(PO4)3OH, is the mineral in teeth. On a chemical basis explain why drinking milk...

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