A neutral compound has a partition coefficient of 5 5 between ether and water. What percentage of the compound would be extracted from 10 mL of water if 10 mL of ether were used to extract the compound?
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A neutral compound has a partition coefficient of 5 5 between ether and water. What percentage of the compound would be extracted from 10 mL of water if 10 mL of ether were used to extract the compound?
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- A neutral compound has a partition coefficient of 8 between ether and water. What percentage of the compound would be extracted from 10 mL of water if: a) 30 mL of ether were used to extract the compound? b) 10 mL of ether were used to extract the compound?substance of mass 10 g is dissolved in 50 mL of water. Calculate the total mass of sample that can be extracted into 40 mL of ether, if the ether is used in two 20 mL portions .The partition coefficient(k)of the substance between petroleum ether and water is give 4The partition coefficient(k)of a substance between petroleum ether and water is 6. A substance of mass 12 g is dissolved in 50 mL of water. Calculate the total mass of sample that can be extracted into 40 mL of ether if the ether is used in two 20 mL portions.
- 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?A novel compound named “sanaoline” with a partition coefficient (KD) of 6 was extracted from 5.0 grams of Lagundi leaves which contains 0.8% of the compound. How much of sanaoline in milligrams remains in 100.0 mL of the aqueous phase if 5 successive extractions using 50. mL of petroleum ether?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
- A solute with a partition coefficient of 4.0 is extracted from 10.0 mL of phase 1 into phase 2. a) What volume ofphase 2 is needed to extract 99% of the solute in one extraction? b) What is the total volume of solvent 2 neededto remove 99% of the solute in three equal extractions instead?Variation in volume of extraction solvent: compound X is dissolved in 20.0 mL of solvent B. Assuming a partition coefficient of PX,AB of 5.0, calculate the percentage of X that remains in solvent B if it is extracted the following volumes of solvent A: 1.0 mL 10.0 mL 20.0 mL 100.0 mL1. It can be shown mathematically that 2 or more smaller extractions (using smaller portions of asolvent) are better than 1 single extraction using a larger portion of solvent. Suppose a particularextraction proceeds with a partition coefficient, Ksp, of 10. Ksp = C2/C1 where C2/C1 is the distribution of a compound between diethyl ether (C2) andwater (C1) in grams/L. Use grams/L in your calculations. 5.00 g of an organic compound is dissolved in 100 ml of water. Show that two successive 50.0 mlextractions with diethyl ether will yield more compound than one 100 ml extraction.
- Why is there a change to the way the dye molecules partition between two solvents when ethanol is added?A neutral compound has a partition coefficient of 7 between ether and water. What percentage of the compound would be extracted from 10 mL of water if: a) 30 mL of ether were used to extract the compound? Answer = (record your answer in decimal notation to 1 decimal) b) 10 mL of ether were used to extract the compound? Answer = (record your answer in decimal notation to 1 decimal)1) Please define the term distribution coefficient, Kd? 2) How the value of Kd indicates the potential separation of an organic compound, via extraction
