The amino acid histidine has ionizable groups with pKą values of 1.8, 6.0, and 9.2, as shown.COOHTH₂N-CH|CH₂ H-OpHUT=ZIIonizable -COOHgroupCHH₂N-CHT1.8COO-pk₁CH2UICOO™HIZCH-HisH+COO™+H₂N-CH6.0pK₂CH ₂UI-HisHCH-NHCOO™H₂N-CH9.2pk3CH ₂UI—NH₂HA biochemist makes up 80 mL of a 0.11 M solution of histidine at a pH of 5.1. She then adds 60 mL of 0.10 M HCl. What isthe pH of the resulting solution?CH

Molarity of Histidine solution = 0.11 MThe volume of Histidine solution taken = 80 mLpH of Histidine…

The amino acid histidine has ionizable groups with pKa values of 1.8, 6.0, and 9.2, as shown. COOH H₂N-CH CH. H pH = H CH lonizable -COOH group COO H₂N-CH 1.8 pk, H COO CH -HisH+ COO™ H₂N-CH 6.0 pk₂ CH₂ H H -His CH -NH+ COO™ H₂N-CH 9.2 pk3 CH₂ H -N H N -NH₂ CH A biochemist makes up 80 mL of a 0.11 M solution of histidine at a pH of 5.1. She then adds 60 mL of 0.10 M HCl. What is the pH of the resulting solution?

The amino acid histidine has ionizable groups with pKa values of 1.8, 6.0, and 9.2, as shown. COOH H₂N-CH CH. H pH = H CH lonizable -COOH group COO H₂N-CH 1.8 pk, H COO CH -HisH+ COO™ H₂N-CH 6.0 pk₂ CH₂ H H -His CH -NH+ COO™ H₂N-CH 9.2 pk3 CH₂ H -N H N -NH₂ CH A biochemist makes up 80 mL of a 0.11 M solution of histidine at a pH of 5.1. She then adds 60 mL of 0.10 M HCl. What is the pH of the resulting solution?

Introduction to General, Organic and Biochemistry

11th Edition

ISBN:9781285869759

Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres

Publisher:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres

Chapter23: Enzymes

Section: Chapter Questions

Problem 23.65P

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The amino acid histidine has ionizable groups with pKa values of 1.8, 6.0, and 9.2, as shown. COOH H₂N-CH CH₂ H 2 -N H lonizable group 6.0 1.9 7.94 0.11 N H CH -COOH H₂N-CH | CH₂ H 2 N 1.8 COO- I pk₁ C H COO- CH -HisH+ H₂N-CH 6.0 COO- pk ₂. CH₂ H 2 H -His N CH COO™ H₂N-CH 9.2 pk 3 CH₂ H -N с H —NH — —NH, A biochemist makes up 95 mL of a 0.11 M solution of histidine at a pH of 5.1. She then adds 60 mL of 0.10 M HCI. What is the pH of the resulting solution? N CH
The amino acid histidine has ionizable groups with pKa values of 1.8, 6.0, and 9.2, as shown. COOH H₂N-CH | CH ₂ pH = CH lonizable -COOH group COO- H₂N-CH 1.8 pk₁ CH2 H -COO- CH -HisH+ COO- H₂N-CH 1 6.0 pk2 CH ₂ H H N -His CH -NH COO- H₂N-CH 1 9.2 pk₂ CH2 -NH₂ H -N CH A biochemist makes up 80 mL of a 0.11 M solution of histidine at a pH of 5.1. She then adds 60 mL of 0.10 M HCl. What is the pH of the resulting solution?
The amino acid histidine has ionizable groups with pKą values of 1.8, 6.0, and 9.2, as shown. H₂N-CH T COOH pH CH₂ H lonizable -COOH group = CH COO- H₂N-CH 1.8 pk₁ CH2 -COO- H -N CH -HisH+ COO- + H₂N-CH 6.0 pk₂ CH2 -His CH -NH COO- H₂N-CH 9.2 pk3 CH2 -N -NH₂ A biochemist makes up 80 mL of a 0.11 M solution of histidine at a pH of 5.1. She then adds 60 mL of 0.10 M HCl. What is the pH of the resulting solution? CH
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