Prepare a buffer by direct addition. Close Problem Consider how best to prepare one liter of a buffer solution with pH = 7.66 using one of the weak acid/conjugate base systems shown here. %3D Weak AcidConjugate Base Ка pka HC2O4¯ C2042- H2PO4 HPO42- HCO3 CO3²- 6.4 x 10-5 4.19 6.2 x 10-8 7.21 4.8 x 10-1110.32 How many grams of the potassium salt of the weak acid must be combined with how many grams of the potassium salt of its conjugate base, to produce 1.00 L of a buffer that is 1.00 M in the weak base? grams potassium salt of weak acid = %3D grams potassium salt of coniugate base =

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Prepare a buffer by direct addition.
Close Problem
Consider how best to prepare one liter of a
buffer solution with pH = 7.66 using one of
the weak acid/conjugate base systems shown
here.
Weak AcidConjugate Base
Ка
pKa
HC204¯ C204²-
6.4 x 10-5 4.19
Н2РОД НРОД2-
2-
6.2 x 10-8 7.21
HCO3
4.8 x 10-1110.32
How many grams of the potassium salt of the
weak acid must be combined with how many
grams of the potassium salt of its conjugate
base, to produce 1.00 L of a buffer that is 1.00
M in the weak base?
grams potassium salt of weak acid =
grams potassium salt of conjugate base =
Transcribed Image Text:Prepare a buffer by direct addition. Close Problem Consider how best to prepare one liter of a buffer solution with pH = 7.66 using one of the weak acid/conjugate base systems shown here. Weak AcidConjugate Base Ка pKa HC204¯ C204²- 6.4 x 10-5 4.19 Н2РОД НРОД2- 2- 6.2 x 10-8 7.21 HCO3 4.8 x 10-1110.32 How many grams of the potassium salt of the weak acid must be combined with how many grams of the potassium salt of its conjugate base, to produce 1.00 L of a buffer that is 1.00 M in the weak base? grams potassium salt of weak acid = grams potassium salt of conjugate base =
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