The partitioning of titratable compounds between the organic and aqueous layer can be described by the...
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The partitioning of titratable compounds between the organic and aqueous layer can be described by the Henderson Hasselbalch Equation provided below. [A"] pka – pH = -lo9 HA] A student in Chem 3102 has been asked to separate 2,3-dinitrophenol from 4-methoxyphenol shown below with pka values. The two compounds are dissolved in an immiscible organic solvent with water. OH 4-methoxyphenol pka- 10.0 4-methoxybenzoic acid pKa = 5.0 Using an acid/base extraction scheme what pH would the student (1 sig he) use to selectively separate 4-methoxybenzolc acid from 4-methoxyphenol? Students should report this value to the significant fgures indicated in the problem. When reporting numbers less than one students should place o leading zero in front of the decimal point (eg. 0.12). The partitioning of titratable compounds between the organic and aqueous layer can be described by the Henderson Hasselbalch Equation provided below. [A"] pka – pH = -lo9 HA] A student in Chem 3102 has been asked to separate 2,3-dinitrophenol from 4-methoxyphenol shown below with pka values. The two compounds are dissolved in an immiscible organic solvent with water. OH 4-methoxyphenol pka- 10.0 4-methoxybenzoic acid pKa = 5.0 Using an acid/base extraction scheme what pH would the student (1 sig he) use to selectively separate 4-methoxybenzolc acid from 4-methoxyphenol? Students should report this value to the significant fgures indicated in the problem. When reporting numbers less than one students should place o leading zero in front of the decimal point (eg. 0.12).
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