7. You have 1.0 L of 100 mM K₂HPO, solution. What volume of 1.0 M HCI must be added to adjust the pH of the solution to 6.77? H₂PO4 + H₂O ⇒ H₂O* + H₂PO¡¯ ⇒ H₂O* + HPO³ = H₂O* + PO³ The pk, values for these equilibria are 2.14, 6.86, and 12.4 A. 6 mL B. 17 mL C. 32 mL D. 55 mL 98 mL

7. You have 1.0 L of 100 mM K₂HPO, solution. What volume of 1.0 M HCI must be added to adjust the pH of the solution to 6.77? H₂PO4 + H₂O ⇒ H₂O* + H₂PO¡¯ ⇒ H₂O* + HPO³ = H₂O* + PO³ The pk, values for these equilibria are 2.14, 6.86, and 12.4 A. 6 mL B. 17 mL C. 32 mL D. 55 mL 98 mL

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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