A 0.805 gram sample of an unknown monoprotic acid is dissolved in 25.0 mL of water and titrated with a a 0.326 M aqueous potassium hydroxide solution. It is observed that after 6.79 milliliters of potassium hydroxide have been added, the pH is 9.102 and that an additional 14.9 mL of the potassium hydroxide solution is required to reach the equivalence point. (1) What is the molecular weight of the acid? (2) What is the value of Ka for the acid? g/mol

A 0.805 gram sample of an unknown monoprotic acid is dissolved in 25.0 mL of water and titrated with a a 0.326 M aqueous potassium hydroxide solution. It is observed that after 6.79 milliliters of potassium hydroxide have been added, the pH is 9.102 and that an additional 14.9 mL of the potassium hydroxide solution is required to reach the equivalence point. (1) What is the molecular weight of the acid? (2) What is the value of Ka for the acid? g/mol

Chemistry

10th Edition

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

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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