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When added to pure water in equal quantities, a Base with a Kb = 2.4 x 10-8 will cause greater pH change than a Base with a Kb = 5.0 x 10-10.

When added to pure water in equal quantities, a Base with a Kb = 2.4 x 10-8 will cause greater pH change than a Base with a Kb = 5.0 x 10-10.

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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When added to pure water in equal quantities, a Base with a Kb = 2.4 x 10-8 will cause greater pH change than a Base with a Kb = 5.0 x 10-10. 

 

 

 

True

False

Expert Solution
Step 1

when base B is added to water it abstract hydrogen ion from water to form BH+ 

the reaction  is shown below

B +H2O ⇋BH++OH-

the dissociation constant 

Kb =[BH+][OH-][B]

so 

Kb     ∝[OH-]

higher the concentration of  [OH- ] so higher is value of Kb more stronger is basic

 

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