2. Phoebe was tasked to ensure that an enzyme responsible for keeping her species from extinction remains biologically active. To do so, she needs to store it in a buffer solution with a pH of10.00. Unfortunately, only three buffer systems are available in their laboratory:Buffer System Weak Acid Component K₂Conjugate Base SaltPAHBenzoic acid, C6H5COOH 6.25 x 10-5 NaC6H5COOSADBoric acid, H3BO35.81 x 107 NaH₂BO3DOHHydrogen cyanide, HCN 6.20 X 10-10 NaCNA. In what buffer system (PAH, SAD, or DOH) will Phoebe store the enzyme?In your solution sheet, show calculations and briefly explain to support your answer.B. Write the equilibrium reaction involved in the buffer system. Write your answer on your solution sheetC. Calculate the amount (in mL) of the 2.00 M stock solution (pH 10.00) of the same buffer system needed to prepare 250 mL of a 0.650 M buffer pH 10.00.

Answered: Image /qna-images/answer/640df177-d820-4c9e-8ae3-3b9afbcb0442.jpg

2. Phoebe was tasked to ensure that an enzyme responsible for keeping her species from extinction remains biologically active. To do so, she needs to store it in a buffer solution with a pH of 10.00. Unfortunately, only three buffer systems are available in their laboratory: Buffer System Weak Acid Component K₂ Conjugate Base Salt PAH Benzoic acid, C6H5COOH 6.25 x 10-5 NaCH₂COO SAD Boric acid, H3BO3 5.81 x 107 NaH2BO3 DOH Hydrogen cyanide, HCN 6.20 X 10-10 NaCN A. In what buffer system (PAH, SAD, or DOH) will Phoebe store the enzyme? In your solution sheet, show calculations and briefly explain to support your answer. B. Write the equilibrium reaction involved in the buffer system. Write your answer on your solution sheet C. Calculate the amount (in mL) of the 2.00 M stock solution (pH 10.00) of the same buffer system needed to prepare 250 mL of a 0.650 M buffer pH 10.00.

2. Phoebe was tasked to ensure that an enzyme responsible for keeping her species from extinction remains biologically active. To do so, she needs to store it in a buffer solution with a pH of 10.00. Unfortunately, only three buffer systems are available in their laboratory: Buffer System Weak Acid Component K₂ Conjugate Base Salt PAH Benzoic acid, C6H5COOH 6.25 x 10-5 NaCH₂COO SAD Boric acid, H3BO3 5.81 x 107 NaH2BO3 DOH Hydrogen cyanide, HCN 6.20 X 10-10 NaCN A. In what buffer system (PAH, SAD, or DOH) will Phoebe store the enzyme? In your solution sheet, show calculations and briefly explain to support your answer. B. Write the equilibrium reaction involved in the buffer system. Write your answer on your solution sheet C. Calculate the amount (in mL) of the 2.00 M stock solution (pH 10.00) of the same buffer system needed to prepare 250 mL of a 0.650 M buffer pH 10.00.

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 109QRT: The grid has six lettered boxes, each of which contains an item that may be used to answer the...

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