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 4.14 g. Calculate the molar concentration of ascorbic acid in the solution before it was evaporated. i I M What was the pH of the ascorbic acid solution before it was evaporated? pH = i What was the concentration of the ascorbate ion, C6H6062, before the solution was evaporated? i 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 4.14 g. Calculate the molar concentration of ascorbic acid in the solution before it was evaporated. i I M What was the pH of the ascorbic acid solution before it was evaporated? pH = i What was the concentration of the ascorbate ion, C6H6062, before the solution was evaporated? i M
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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![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 4.14 g.
Calculate the molar concentration of ascorbic acid in the solution before it was evaporated. i
I
M
What was the pH of the ascorbic acid solution before it was evaporated? pH
=
i
What was the concentration of the ascorbate ion, C6H6062, before the solution was evaporated? i
M](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6a89a24e-afe1-4b66-b088-3294c1111f55%2F0d4a13b6-b4ec-40aa-ab74-cfcc3fbbf62d%2Fu9misk8_processed.jpeg&w=3840&q=75)
Transcribed Image Text: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 4.14 g.
Calculate the molar concentration of ascorbic acid in the solution before it was evaporated. i
I
M
What was the pH of the ascorbic acid solution before it was evaporated? pH
=
i
What was the concentration of the ascorbate ion, C6H6062, before the solution was evaporated? i
M
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