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After preparing the buffer, Joey decided to determine the buffer capacity of the solution by titration using 0.500 M NaOH as titrant. Given the data he obtained below, calculate the prepared buffer system's buffer capacity (3). Parameter Value/Measurement Volume of buffer, mL 75.0 Initial pH reading 7.10 Final pH reading 8.10 Final buret reading, mL 45.50 Initial buret reading, mL 33.80 A. ApH B. AVNaOH (ML) = C. Moles of titrant =

After preparing the buffer, Joey decided to determine the buffer capacity of the solution by titration using 0.500 M NaOH as titrant. Given the data he obtained below, calculate the prepared buffer system's buffer capacity (3). Parameter Value/Measurement Volume of buffer, mL 75.0 Initial pH reading 7.10 Final pH reading 8.10 Final buret reading, mL 45.50 Initial buret reading, mL 33.80 A. ApH B. AVNaOH (ML) = C. Moles of titrant =

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Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter16: Solubility And Complex Ion Equilibria
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After preparing the buffer, Joey decided to determine the buffer capacity of the solution by titration using 0.500 M NaOH as titrant. Given the data he obtained below, calculate the prepared buffer system's buffer capacity (B). Parameter Value/Measurement Volume of buffer, mL 75.0 Initial pH reading 7.10 Final pH reading 8.10 Final buret reading, mL 45.50 Initial buret reading, mL 33.80 A. ApH = B. AVNaOH (ML) = C. Moles of titrant = D. Buffer Capacity (B): =
Transcribed Image Text:After preparing the buffer, Joey decided to determine the buffer capacity of the solution by titration using 0.500 M NaOH as titrant. Given the data he obtained below, calculate the prepared buffer system's buffer capacity (B). Parameter Value/Measurement Volume of buffer, mL 75.0 Initial pH reading 7.10 Final pH reading 8.10 Final buret reading, mL 45.50 Initial buret reading, mL 33.80 A. ApH = B. AVNaOH (ML) = C. Moles of titrant = D. Buffer Capacity (B): =
2. Joey was tasked to ensure that an enzyme responsible for keeping his species from extinction remains biologically active. To do so, he 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 KYA MUH TWO A. In what buffer system (KYA, MUH, or TWO) will Joey 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 1.75 M stock solution (pH 7.00) of the same buffer system needed to prepare 250 mL of a 0.550 M buffer pH 7.00. Benzoic acid, C6H5COOH 6.25 x 105 NaC6H5COO Boric acid, H3BO3 5.81 x 107 NaH₂BO3 Hydrogen cyanide, HCN 6.20 X 10-10 NaCN
Transcribed Image Text:2. Joey was tasked to ensure that an enzyme responsible for keeping his species from extinction remains biologically active. To do so, he 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 KYA MUH TWO A. In what buffer system (KYA, MUH, or TWO) will Joey 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 1.75 M stock solution (pH 7.00) of the same buffer system needed to prepare 250 mL of a 0.550 M buffer pH 7.00. Benzoic acid, C6H5COOH 6.25 x 105 NaC6H5COO Boric acid, H3BO3 5.81 x 107 NaH₂BO3 Hydrogen cyanide, HCN 6.20 X 10-10 NaCN
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