Solid CO2 (0.44 mol) is reacted with CH3MGB (0.28 mol) in ether solvent. The product of the reaction is isolated in aqueous solution (assume 100% yield) and excess CO2 is removed. Subsequently, HCI (aq) (0.12 mol) is added. What is the pH of the solution that results?

Solid CO2 (0.44 mol) is reacted with CH3MGB (0.28 mol) in ether solvent. The product of the reaction is isolated in aqueous solution (assume 100% yield) and excess CO2 is removed. Subsequently, HCI (aq) (0.12 mol) is added. What is the pH of the solution that results?

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter13: Acids And Bases

Section: Chapter Questions

Problem 188IP: Isocyanic acid (HNCO) can be prepared by heating sodium cyanate in the presence of solid oxalic acid...

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Amino acids are an important group of compounds. At low pH, both the carboxylic acid group (CO2H) and the amine group (NHR) are protonated. However, as the pH of the solution increases (say, by adding base), the carboxylic acid proton is removed, usually at a pH between 2 and 3. In a middle range of pHs, therefore, the amine group is protonated, but the carboxylic acid group has lost the proton. (This is called a zwitterion.) At more basic pH values, the amine proton is dissociated. What is the pH of a 0.20 M solution of alanine hydrochloride, [NH3CHCH3CO2H]Cl?
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