A general expression for Alpha values Consider a 1.64 M solution of Phtalic acid C6H4 (CO2H)2 abbreviated as H2A. Given: for C6H4 (CO2H)2 (Ka1 = 1.12 x 10-3 , Ka2 = 3.91 x 10-6 ) a) What are the species expected to be in the solution? b) Calculate the alpha values corresponding to each species at pH 6. c) Which species is predominant at pH 6, based on the alpha values? Was that predictable? d) Calculate the concentration of each species at pH=6.
A general expression for Alpha values Consider a 1.64 M solution of Phtalic acid C6H4 (CO2H)2 abbreviated as H2A. Given: for C6H4 (CO2H)2 (Ka1 = 1.12 x 10-3 , Ka2 = 3.91 x 10-6 ) a) What are the species expected to be in the solution? b) Calculate the alpha values corresponding to each species at pH 6. c) Which species is predominant at pH 6, based on the alpha values? Was that predictable? d) Calculate the concentration of each species at pH=6.
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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A general expression for Alpha values
Consider a 1.64 M solution of Phtalic acid C6H4
(CO2H)2 abbreviated as H2A.
Given: for C6H4
(CO2H)2
(Ka1 = 1.12 x 10-3
, Ka2 = 3.91 x 10-6
)
a) What are the species expected to be in the solution?
b) Calculate the alpha values corresponding to each species at pH 6.
c) Which species is predominant at pH 6, based on the alpha values? Was that predictable?
d) Calculate the concentration of each species at pH=6.
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