Design a buffer that has a pH of 7.20 using one of the weak base/conjugate acid systems shown below. Weak Base CH3NH₂ C6H1503N CsHsN Kb 4.2x10-4 5.9x10-7 1.5x109 Conjugate Acid CH3NH₂+ C6H1503NH+ CsHsNH+ grams weak base = K₂ 2.4x10-11 1.7×10-8 6.7x10-6 pka 10.62 7.77 5.17 How many grams of the bromide salt of the conjugate acid must be combined with how many grams of the weak base, to produce 1.00 L of a buffer that is 1.00 M in the weak base? grams bromide salt of conjugate acid=
Design a buffer that has a pH of 7.20 using one of the weak base/conjugate acid systems shown below. Weak Base CH3NH₂ C6H1503N CsHsN Kb 4.2x10-4 5.9x10-7 1.5x109 Conjugate Acid CH3NH₂+ C6H1503NH+ CsHsNH+ grams weak base = K₂ 2.4x10-11 1.7×10-8 6.7x10-6 pka 10.62 7.77 5.17 How many grams of the bromide salt of the conjugate acid must be combined with how many grams of the weak base, to produce 1.00 L of a buffer that is 1.00 M in the weak base? grams bromide salt of conjugate acid=
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Transcribed Image Text:Design a buffer that has a pH of 7.20 using one of the weak base/conjugate acid systems shown
below.
Weak Base
CH3NH2
C6H1503N
C5H5N
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Kb
4.2x10-4
5.9x10-7
1.5x10-⁹
Conjugate Acid
CH3NH3+
C6H1503NH+
CSHSNH
Ka
2.4x10-11
1.7×10-8
6.7x10-6
pka
10.62
7.77
5.17
How many grams of the bromide salt of the conjugate acid must be combined with how many
grams of the weak base, to produce 1.00 L of a buffer that is 1.00 M in the weak base?
grams bromide salt of conjugate acid =
grams weak base=
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