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1. A1.0 M solution of a weak base B has a pH of 11.60. What is the valve of Kb for this base? а. 6.3 х 10-10 b. 0.996 с. 1.6 х 10-5 d. 2.5 x 10-12

1. A1.0 M solution of a weak base B has a pH of 11.60. What is the valve of Kb for this base? а. 6.3 х 10-10 b. 0.996 с. 1.6 х 10-5 d. 2.5 x 10-12

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
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Michig. Course Materia... https://learn-u. https://learn-u.. Mail - Callison,.. WebEx - Centr.. Unjustified reg. From Corgis to... 1. A1.0 M solution of a weak base B has a pH of 11.60. What is the valve of Kb for this base? а. 6.3 х 10-10 b. 0.996 с. 1.6 х 10-5 d. 2.5 x 10-12 2. Which statement is true about a solution of ZnCl2 in water? a. The solution is acidic b. The solution is basic C. The solution is neutral d. Not enough information to determine 3. What is the pH of a 0.15 M HF solution? Ka = 3.5 x 10-4 a. 0.82 b. 11.86 с. 3.46 d. 2.14 4. What is the percent dissociation of a 0.10 M solution of acetic acid (Ka= 1.8 x 10-5)? a. 1.3% b. 0.13% c. 0.17% d. 98.7% 5. What is the expected pH of a solution of (NH4)2CO3? The Ka for NH4+ is 5.5 x 10-10 and the Kb for CO32- is 1.8 x 10-4. a. Greater than 7
Transcribed Image Text:Michig. Course Materia... https://learn-u. https://learn-u.. Mail - Callison,.. WebEx - Centr.. Unjustified reg. From Corgis to... 1. A1.0 M solution of a weak base B has a pH of 11.60. What is the valve of Kb for this base? а. 6.3 х 10-10 b. 0.996 с. 1.6 х 10-5 d. 2.5 x 10-12 2. Which statement is true about a solution of ZnCl2 in water? a. The solution is acidic b. The solution is basic C. The solution is neutral d. Not enough information to determine 3. What is the pH of a 0.15 M HF solution? Ka = 3.5 x 10-4 a. 0.82 b. 11.86 с. 3.46 d. 2.14 4. What is the percent dissociation of a 0.10 M solution of acetic acid (Ka= 1.8 x 10-5)? a. 1.3% b. 0.13% c. 0.17% d. 98.7% 5. What is the expected pH of a solution of (NH4)2CO3? The Ka for NH4+ is 5.5 x 10-10 and the Kb for CO32- is 1.8 x 10-4. a. Greater than 7
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