Picric acid, a weak acid, is dissolved in water to prepare a 0.100 M solution. Conductivity measurements

Question:

Picric acid, a weak acid, is dissolved in water to prepare a 0.100 M solution. Conductivity measurements at a particular temperature indicate that the picric acid is 82% ionized. Calculate Ka and pKa.
Strategy

Use the fraction ionized to calculate the concentrations of the species in solution. Substitute these concentrations into the expression for Ka to determine the value of the equilibrium constant.

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Related Book For  answer-question

Chemistry Principles And Practice

ISBN: 9780534420123

3rd Edition

Authors: Daniel L. Reger, Scott R. Goode, David W. Ball

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