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Values of K, for Some Common Weak Bases Name Formula Ammonia NH3 CH,NH, Methylamine Ethylamine C₂H5NH₂ Aniline CH;NH, Pyridine C,H,N Conjugate Acid NH4+ CH3NH3 + C₂H5NH3 + C6H5NH3 + CH;NH+ Kb 1.8 x 10-5 4.38 x 10-4 5.6 x 10-4 3.8 x 10-10 1.7 x 10-9

Values of K, for Some Common Weak Bases Name Formula Ammonia NH3 CH,NH, Methylamine Ethylamine C₂H5NH₂ Aniline CH;NH, Pyridine C,H,N Conjugate Acid NH4+ CH3NH3 + C₂H5NH3 + C6H5NH3 + CH;NH+ Kb 1.8 x 10-5 4.38 x 10-4 5.6 x 10-4 3.8 x 10-10 1.7 x 10-9

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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Using the table of the weak base below, you have chosen Aniline as your weak base in the buffer solution. You have already added enough of the conjugate acid salt to make the buffer solution concentration at 0.71 M in this salt. The desired pH of the buffer should be equal to 3.8.  

2. Compute for pKb (round-off to 2 decimal places).

Values of K, for Some Common Weak Bases Name Formula Ammonia NH3 CH,NH, Methylamine Ethylamine C₂H5NH₂ Aniline CH;NH, Pyridine C,H,N Conjugate Acid NH4+ CH3NH3 + C₂H5NH3 + C6H5NH3 + CH;NH+ Kb 1.8 x 10-5 4.38 x 10-4 5.6 x 10-4 3.8 x 10-10 1.7 x 10-9
Transcribed Image Text:Values of K, for Some Common Weak Bases Name Formula Ammonia NH3 CH,NH, Methylamine Ethylamine C₂H5NH₂ Aniline CH;NH, Pyridine C,H,N Conjugate Acid NH4+ CH3NH3 + C₂H5NH3 + C6H5NH3 + CH;NH+ Kb 1.8 x 10-5 4.38 x 10-4 5.6 x 10-4 3.8 x 10-10 1.7 x 10-9
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