Question
Asked Nov 21, 2019
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Determine the Kb of a weak base if a 0.563 M aqueous solution of the base at 25

°

C has a pH of 10.88.
 

 
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Expert Answer

Step 1

Given information:

Concentration of aqueous solution of base = 0.563 M

pH of solution = 10.88

Step 2

Assuming B the formula for weak base and the chemical equation for its aqueous solution is represented as follows:

 

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B H20 HB +OH

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Step 3

First concentration of hydrogen ions is c...

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рH--1og[ H"] н]-10-0 3D 1.318х10-11м

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