5:31 ← Can you explain why A. is a weak acid here? Expert Answer Step1 a) Acidity of a acid depends on how much H+ ions it produces after dissolving in water. Step2 b) Among the following HNO3 completely dissociates in water. So it is a strong acid. But H3PO4 is a weak acid. Because it partially dissociates in water and produces small amount of H+ ions. Lower is the hydrogen ion concentration lower is the acidity. pKa value of H3PO4 is around 2.4. pKa value of a strong acid is below zero. The lower the pKa the stronger is the acid.

5:31 ← Can you explain why A. is a weak acid here? Expert Answer Step1 a) Acidity of a acid depends on how much H+ ions it produces after dissolving in water. Step2 b) Among the following HNO3 completely dissociates in water. So it is a strong acid. But H3PO4 is a weak acid. Because it partially dissociates in water and produces small amount of H+ ions. Lower is the hydrogen ion concentration lower is the acidity. pKa value of H3PO4 is around 2.4. pKa value of a strong acid is below zero. The lower the pKa the stronger is the acid.

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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