Calculate the pH of a buffer solution that has concentrations of 0.25 M of [NH4]+ and 0.50 M of NH3. The pKa of [NH4]+ is 9.24 Provide two decimal places. pH = NaOH was added to this solution, the concentration of [NH4]+ will increase decrease remain unchanged

Calculate the pH of a buffer solution that has concentrations of 0.25 M of [NH4]+ and 0.50 M of NH3. The pKa of [NH4]+ is 9.24 Provide two decimal places. pH = NaOH was added to this solution, the concentration of [NH4]+ will increase decrease remain unchanged

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

Chapter15: Acid-base Equilibria

Section: Chapter Questions

Problem 13Q: A best buffer has about equal quantities of weak acid and conjugate base present as well as having a...

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Question

Calculate the pH of a buffer solution that has concentrations of 0.25 M of [NH₄]⁺ and 0.50 M of NH₃.

The pK_a of [NH₄]⁺ is 9.24

Provide two decimal places.

pH =

NaOH was added to this solution, the concentration of [NH₄]⁺ will

increase

decrease

remain unchanged

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