1. If 100 mls of 0.05 M NaoH is added to 700 mls of 0.15 M glycine buffer at pH 9.4, what is the resultant pH (PK1 for Gly= 2.2, Pk2=9.4) glycine .7LX.15mole/l = .105 moles NaOH .1LX.05mole/L = .005 moles Glyº .0525 moles Start Add.005 moles NaOH -.005 End .0475 moles .059M Gly + H+ .0525 moles +.005 .0575moles .071M pH = pka +log [A-]/[HA] =9.4 + log .071/.059 = 9.5

1. If 100 mls of 0.05 M NaoH is added to 700 mls of 0.15 M glycine buffer at pH 9.4, what is the resultant pH (PK1 for Gly= 2.2, Pk2=9.4) glycine .7LX.15mole/l = .105 moles NaOH .1LX.05mole/L = .005 moles Glyº .0525 moles Start Add.005 moles NaOH -.005 End .0475 moles .059M Gly + H+ .0525 moles +.005 .0575moles .071M pH = pka +log [A-]/[HA] =9.4 + log .071/.059 = 9.5

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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