QUESTION 4For the general buffer system:HA(aq) + H20(1) - H30*(aq)+ A(aq)When a strong acid is added, which of the following is true?O As [H30+] increases, the buffer equilibrium shifts to the right and (HAJ/[AJ increases.O As [H30*] increases, the buffer equilibrium shifts to the right, and [HAJ/[A"] decreases.O As [H30*) increases, the buffer equilibrium shifts to the left, and [HA/A) decreases.O As [H30*j increases, the buffer equilibrium shifts to the left, and (HAJA] increases.QUESTION 5Select any systems that could be used to buffer a solution at a pH of 9. Mark all appropriate answers.O HSO4/SO42-Ka=1.02 x 10-7O H2CO3/HCO3Kg=4.3 x 10-7UC6H5COOH/C6H5COO Ka-6.46 x 10-5O NH4 /NH3Ka=5.6 x 10-10U HF/F K3=7.2 x 10-4HCO37 CO32-Ka=4.8 x 10 11

Answered: Image /qna-images/answer/2619a95c-ee29-4c7e-9324-3e2cf38835c9.jpg

For the general buffer system: H30 (aq) + A (aq) HA(aq) + H20(1) When a strong acid is added, which of the following is true? O As [H30+j increases, the buffer equilibrium shifts to the right and (HA/[AJ increases. As [H30+j increases, the buffer equilibrium shifts to the right, and (HAJ/[A"] decreases. O As [H30*] increases, the buffer equilibrium shifts to the left, and [HAJ/[A]] decreases. O As [H30*j increases, the buffer equilibrium shifts to the left, and [HA/[A] increases.

For the general buffer system: H30 (aq) + A (aq) HA(aq) + H20(1) When a strong acid is added, which of the following is true? O As [H30+j increases, the buffer equilibrium shifts to the right and (HA/[AJ increases. As [H30+j increases, the buffer equilibrium shifts to the right, and (HAJ/[A"] decreases. O As [H30] increases, the buffer equilibrium shifts to the left, and [HAJ/[A]] decreases. O As [H30j increases, the buffer equilibrium shifts to the left, and [HA/[A] increases.

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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