A solution of 3g organic compound X in 200ml of water was extracted with 200 ml of ethyl ether. At equilibrium the concentration of Xin the two phases was ; 2.6g/100ml of ethyl ether ; 0.8g/100 ml of water. Calculate the partition coefficient, Kd, for compound X in the system. Show your calculations and What percentage of the original sample of X was extracted? Show your calculations.

A solution of 3g organic compound X in 200ml of water was extracted with 200 ml of ethyl ether. At equilibrium the concentration of Xin the two phases was ; 2.6g/100ml of ethyl ether ; 0.8g/100 ml of water. Calculate the partition coefficient, Kd, for compound X in the system. Show your calculations and What percentage of the original sample of X was extracted? Show your calculations.

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter16: Solubility And Precipitation Equilibria

Section: Chapter Questions

Problem 52P

See similar textbooks

Similar questions

A chemical solute has a partition coefficient of 11.2 between hexane and water. If the equilibrium concentration of solute in hexane is 0.00815 M, the equilibrium concentration of the solute in water is: a)7.59 x 10-4 M b) 0.0913 M c)0.00815 M d)1.37 x 103 e)None of These
Pure potassium hydrogen phthalate is used for the standardization of the sodium hydroxide solution. Suppose that the potassium hydrogen phthalate is not completely dry. Will the reported molar concentration of the sodium hydroxide solution be too high, too low, or unaffected because of the moistness of the potassium hydrogen phthalate? Explain.
The partition coefficient K for a compound between dichloromethane and water is determined to be 56 : 1 (K=56). If 10.0 mg of the compound is dissolved in 50.0 mL of water and this solution extracted with 25.0 mL of dichloromethane, how many mg of the compound will remain in the water layer following the extraction procedure? Show you calculations
Liquid-liquid extraction is a means of separating the components of a mixture which relies on the differential partitioning of the components in two immiscible liquids. Define the term immiscible. O 1) Two solvents that do not mix together O 2) Two solvents that do mix together
7. Account for the difference in color of the filtrate of aqueous methylene blue and that of the original mixture. What is the importance of the principle of adsorption in colloidal system? What determines the adsorbing power of a given adsorbent? Relate this to colloidal system.
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?
A 36.0 mg sample of an organic compound (molar mass = 84.0 g/mol) is dissolved in 10.0 mL of water. This aqueous solution is extracted with 5.0 mL of hexane. Separation and analysis of the aqueous phase shows that it now contains 12.0 mg of the organic compound. Calculate the partition coefficient for the compound between hexane and water (Kphexane/water). Your answer should reflect the proper number of significant figures.
Compute for the numerical value of the gravimetric factor required to convert the given precipitate into the desired analyte. 1. Magnesium ammonium phosphate (MgNH4PO4) precipitate into phosphorous (as diphosphorous pentoxide, P2O5). 2. Magnesium ammonium phosphate hexahydrate (MgNH4PO4.6H2O) precipitate into nitrogen.
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?
Calculate : 1)Mean Experimental solubility of calcium hydroxide 2)standard deviation 3)RSD(pph)
Q3/ Calculate the solubility of barium carbonate BaSO4 in a solution containing MgSO4 0.04M taking into consideration the activities. Compare the result if the effectiveness is not taken into consideration, KSP BaSO4 = 1.08 x 10 -10
2. The size of a molecule is a factor that can greatly affect solubility of ions. Which molecule is larger, acetone or water? How could this affect the solubility of Nat and CI" ions in each solvent? 3. It is very likely that the acetone partition still contained a fairly good amount of water (and that the water partition contained acetone). Only one of the three concentration units will be affected by the water in the acetone solution. Which one is affected? Explain why, and why the other two concentration units will be unaffected by the amount of water.