You are hired by a company to make and test buffer solutions for biological labs. The main buffer system that you have to work on is the ascorbic acid/ sodium ascorbate buffer. The molecular formula for ascorbic acid is CH§O6 and the Ka is 8.0 x 105. The molecular formula for sodium ascorbate is C,H¬O6NA. Answer the following questions regarding your work at the company with this buffer system. (Hint: this is content from lecture as well!) а. Write out a balanced equation for the buffer system in water. b. What is the pH of your buffer system if you make a 157.4 mL solution of 0.789 M ascorbic acid and 0.924 M sodium ascorbate? c. How would you make the buffer system from part b if you started with solids of ascorbic acid and sodium ascorbate? d. Using the information given above, what would the resulting pH be if you added 2.10 mL of 1.41 M HCl to your buffer solution?

You are hired by a company to make and test buffer solutions for biological labs. The main buffer system that you have to work on is the ascorbic acid/ sodium ascorbate buffer. The molecular formula for ascorbic acid is CH§O6 and the Ka is 8.0 x 105. The molecular formula for sodium ascorbate is C,H¬O6NA. Answer the following questions regarding your work at the company with this buffer system. (Hint: this is content from lecture as well!) а. Write out a balanced equation for the buffer system in water. b. What is the pH of your buffer system if you make a 157.4 mL solution of 0.789 M ascorbic acid and 0.924 M sodium ascorbate? c. How would you make the buffer system from part b if you started with solids of ascorbic acid and sodium ascorbate? d. Using the information given above, what would the resulting pH be if you added 2.10 mL of 1.41 M HCl to your buffer solution?

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter14: Acid- Base Equilibria

Section: Chapter Questions

Problem 4RQ: A good buffer generally contains relatively equal concentrations of weak acid and conjugate base. If...

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