If the absorbance of one of the buffer solutions (pH = 4.604) was 0.314 and the absorbance of the basic solution was 0.621, what is the pka of the indicator? Include activity coefficients in the calculation and report your answer with 3 decimal places. The correct ans is 4.916 not 4.90016

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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If the absorbance of one of the buffer
solutions (pH = 4.604) was 0.314 and the
absorbance of the basic solution was 0.621,
what is the pka of the indicator? Include
activity coefficients in the calculation and
report your answer with 3 decimal places.
The correct ans is 4.916 not 4.90016
Transcribed Image Text:If the absorbance of one of the buffer solutions (pH = 4.604) was 0.314 and the absorbance of the basic solution was 0.621, what is the pka of the indicator? Include activity coefficients in the calculation and report your answer with 3 decimal places. The correct ans is 4.916 not 4.90016
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