Formulation of Strong Acid-Strong Base Potentiometric Titration Curve in Terms of Hyperbolic Functions

1989 ◽  
Vol 18 (2) ◽  
pp. 197-200 ◽  
Author(s):  
Masao Kodama

In this exercise students will learn about the reactions between a strong base and weak, as well as a weak base and a strong acid. Students will simulate a titration curve that would be obtained if a strong acid and a weak base were reacted, and they will advance their knowledge of using a spreadsheet in chemistry related exercises.


This exercise aims to reinforce in students the concepts of acid-base chemistry, specifically the reaction of a strong acid and a strong base. Students will simulate a titration curve for the addition of a strong acid (burette) into a strong base (beaker).


1930 ◽  
Vol 14 (1) ◽  
pp. 87-97 ◽  
Author(s):  
Henry S. Simms

The author corroborates the data of Schmidt showing that the dissociation index of the third group of arginine is pK3' = 12.5. New titration data of edestin have been obtained in very alkaline solutions and show that there is a corresponding group with a titration index of pG' = 12.0, but present in much less quantity than can account for the arginine found on hydrolysis. The data support the theory that the combination of strong base or strong acid with proteins is produced by the formation of salts with the "extra groups" of those trivalent amino acids which can be isolated from the protein, with the exception of arginine. Arginine contributes to the titration curve in much smaller amount than is found on hydrolysis. This deficiency in the arginine group may be accounted for by the basic group in proteins having a titration index of pG' = 3.8 to 4.6 (depending on the protein), which apparently yields arginine on hydrolysis, and may properly be called prearginine.


2006 ◽  
Vol 39 (6) ◽  
pp. 2016-2020 ◽  
Author(s):  
Priti Sundar Mohanty ◽  
Tamotsu Harada ◽  
Kozo Matsumoto ◽  
Hideki Matsuoka

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