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Letter
The pH at the First Equivalence Point in the Titration of a Diprotic Acid
Hi-Res PDFDepartment of Chemistry, Cornell College, Mount Vernon, IA 52314
J. Chem. Educ., 2003, 80 (12), p 1382
DOI: 10.1021/ed080p1382
Publication Date (Web): December 1, 2003
Abstract
The author argues that the validity of the simple result achieved by an earlier paper can be seen even more easily than its author indicates.
Keywords (Audience):
Second-Year UndergraduateKeywords (Domain):
Analytical ChemistryKeywords (Feature):
LettersKeywords (Subject):
Acids / BasesView: Hi-Res PDF | PDF w/ Links
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- Received: August 03, 2009
ACS
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Ka1Ka2 can be derived in only two lines by recognizing that the principal reaction in a solution of HA- is its autoprotolysis. The supposedly rigorous equation derived in many texts gives pH values that are no more reliable.
