1.2i. Describe the relationship between partitionconstant and partition ratio.ii. briefly discuss types of extraction methods usedin chemical analysis.iii. Briefly discuss the elution chromatography oncolumns (use a diagram to illustrate youranswer).

1. Partition Constant (K): The partition constant, often denoted as K, is a measure of the…

Answered: 1.2 i. Describe the relationship…

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter33: High-performance Liquid Chromatography

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Problem 33.9QAP

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If the concentration in a bulk solution adjacent to a fibrous medium is at a concentration cA = 1mM, and partition coefficient of K = 0.7, what is the concentration in the %3D leading edge of the fibrous medium? the answer has units of mM (canvas does not allow you to enter units or display the answer with units.) your answer mM
6. ( If the solubility of solute Z is 1.0 g/60 mL in diethyl ether and is 1.0 g/1110 mL in water. a) Determine the partition coefficient for the solute Z in these two solvents. b) If 60 mg of the solute Z were dissolved in 100 mL of water, how much ether would be required to extract 90% of solute Z in a single extraction. c) What percent of the A would be extracted from the aqueous solution in (b) by two 50 mL portions of ether?
Solute A has a partition coefficient of 3 between toluene and water, with three times as much in the toluene phase. Suppose that 100 mL of a 0.010M aqueous solution of A is extracted with toluene. What fraction of A remains in the aqueous phase, if five extraction with 100 mL is performed?
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The partition coefficient for caffeine between dichloromethane and water is 4.6. Assume that a 100 mL tea solution (in water) contained 100 mg of caffeine. What is the theoretical yield of caffeine in the methylene chloride if you extract with one 100 mL portion of methylene chloride?
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1.2 i. Describe the relationship between partition constant and partition ratio. ii. briefly discuss types of extraction methods used in chemical analysis. iii. Briefly discuss the elution chromatography on columns (use a diagram to illustrate your answer).