1. You are given 0.5 M solution of the amino acid Arginine. pK1 (\alpha carboxyl group ) = 2.17 • pK2 (\alpha amino group) = 9.03 and ⚫ pK3 (guanidine group) = 12.48 Answer the following questions. a. Determine the pH of the solution if you add 15 mL 0.25 M HCI to 10 mL of the 0.5 M Arginine. Assume that Arginine is in isotonic state.(Show all calculations) b. Draw the structure of the amino acid at the pH determined in question 5a.

1. You are given 0.5 M solution of the amino acid Arginine. pK1 (\alpha carboxyl group ) = 2.17 • pK2 (\alpha amino group) = 9.03 and ⚫ pK3 (guanidine group) = 12.48 Answer the following questions. a. Determine the pH of the solution if you add 15 mL 0.25 M HCI to 10 mL of the 0.5 M Arginine. Assume that Arginine is in isotonic state.(Show all calculations) b. Draw the structure of the amino acid at the pH determined in question 5a.

Chemical Principles in the Laboratory

11th Edition

ISBN:9781305264434

Author:Emil Slowinski, Wayne C. Wolsey, Robert Rossi

Publisher:Emil Slowinski, Wayne C. Wolsey, Robert Rossi

Chapter24: The Standardization Of A Basic Solution And The Determination Of The Molar Mass Of An Acid

Section: Chapter Questions

Problem 2ASA: In an acid-base titration, 21.16 mL of an NaOH solution are needed to neutralize 20.04 mL of a...

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