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
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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Transcribed Image Text: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 C6H3O6 and the Ka is 8.0 x 10°. The molecular formula for sodium ascorbate is
C6H;O6Na. Answer the following questions regarding your work at the company with this buffer
system. (Hint: this is content from lecture as well!)
a. 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?
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