Using the table of the weak base below, you have chosen Ethylamine 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 0.52 M in this salt. The desired pH of the buffer should be equal to 10.1. Values of K, for Some Common Weak Bases Conjugate Acid Name Formula NH CH,NH2 CH&NH; CH;NH, CHN Ammonia Methylamine Ethylamine Aniline Pyridine NH, CH NH, CH,NH; CH,NH, CH,NH 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 2. Compute for pKb. (round off final answer to 2 decimal places)

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Using the table of the weak base below, you have chosen Ethylamine 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 0.52 M in this salt. The desired pH of the buffer should be equal to 10.1.
Values of K, for Some Common Weak Bases
Conjugate
Acid
Name
Formula
K
Ammonia
NH3
CH;NH2
C2H;NH2
CH;NH,
CSH;N
NH,+
CH;NH;*
CH NH;+
CH;NH;+
C;H;NH
1.8 x 10-5
Methylamine
Ethylamine
Aniline
4.38 x 10-4
5.6 x 10-4
3.8 x 10-10
1.7 x 10-9
Pyridine
2. Compute for pKb.
(round off final answer to 2 decimal places)
Transcribed Image Text:Using the table of the weak base below, you have chosen Ethylamine 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 0.52 M in this salt. The desired pH of the buffer should be equal to 10.1. Values of K, for Some Common Weak Bases Conjugate Acid Name Formula K Ammonia NH3 CH;NH2 C2H;NH2 CH;NH, CSH;N NH,+ CH;NH;* CH NH;+ CH;NH;+ C;H;NH 1.8 x 10-5 Methylamine Ethylamine Aniline 4.38 x 10-4 5.6 x 10-4 3.8 x 10-10 1.7 x 10-9 Pyridine 2. Compute for pKb. (round off final answer to 2 decimal places)
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