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. Compute for pKb (round off to 2 decimal places)
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. Compute for pKb (round off to 2 decimal places)
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Chapter16: Acid-base Equilibria
Section: Chapter Questions
Problem 16.153QP: What is the freezing point of 0.92 M aqueous acetic acid? The density of this solution is 1.008...
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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.
Compute for pKb (round off to 2 decimal places)
Transcribed Image Text:Values of K, for Some Common Weak Bases
Name
Formula
Ammonia
NH3
Methylamine
CHẠNH,
Ethylamine
C₂H5NH₂
Aniline
CH;NH,
Pyridine
C,H,N
Conjugate
Acid
NH4+
CH3NH3 +
C₂H5NH3+
CH;NH,*
CH;NH*
Kb
1.8 × 10-5
4.38 × 10-4
5.6 × 10-4
3.8 × 10-10
1.7 × 10-9
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