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7 of 15 Kb for 0.100 M phenol, whose pH is 8.82 is 2.3x10-17 1.5x10-⁹ 4.4x10-10 O 1.5x10-4

7 of 15 Kb for 0.100 M phenol, whose pH is 8.82 is 2.3x10-17 1.5x10-⁹ 4.4x10-10 O 1.5x10-4

Chemistry
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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### Chemistry Quiz Questions - Acid and Base Equilibrium Here are two multiple-choice questions focused on acid and base equilibrium. These questions help assess the understanding of concepts like base dissociation constant (\( K_b \)) and acid dissociation constant (\( K_a \)). #### Question 7 of 15 **Kb for 0.100 M phenol, whose pH is 8.82 is:** - a) \( 2.3 \times 10^{-17} \) - b) \( 1.5 \times 10^{-9} \) - c) \( 4.4 \times 10^{-10} \) - d) \( 1.5 \times 10^{-4} \) #### Question 8 of 15 **The pH of a 0.125 M ethanoic acid ( \( K_a = 1.8 \times 10^{-5} \) ) solution is:** - a) 2.8 - b) 0.13 - c) 1.3 - d) 0.90 The correct answer has been indicated for question 8, with option d) 0.90 being highlighted. These questions are designed to test the understanding of the relationship between pH, concentration, and dissociation constants. Computational skills and familiarity with equilibrium expressions will be necessary to determine the right answers.
Transcribed Image Text:### Chemistry Quiz Questions - Acid and Base Equilibrium Here are two multiple-choice questions focused on acid and base equilibrium. These questions help assess the understanding of concepts like base dissociation constant (\( K_b \)) and acid dissociation constant (\( K_a \)). #### Question 7 of 15 **Kb for 0.100 M phenol, whose pH is 8.82 is:** - a) \( 2.3 \times 10^{-17} \) - b) \( 1.5 \times 10^{-9} \) - c) \( 4.4 \times 10^{-10} \) - d) \( 1.5 \times 10^{-4} \) #### Question 8 of 15 **The pH of a 0.125 M ethanoic acid ( \( K_a = 1.8 \times 10^{-5} \) ) solution is:** - a) 2.8 - b) 0.13 - c) 1.3 - d) 0.90 The correct answer has been indicated for question 8, with option d) 0.90 being highlighted. These questions are designed to test the understanding of the relationship between pH, concentration, and dissociation constants. Computational skills and familiarity with equilibrium expressions will be necessary to determine the right answers.
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