6.4 y laQ1. The distribution coefficient, KD (Cether/Cwater), for an organic substance X at roontemperature is 10.what relative volumes of ether to water should be used for the extraction of90 percent of X from a water solution in a single extraction?KD - CeltierC wieheras there is 90yof cachion o solute romewater in ether. 90g of solute is in elherlog of salue will be in wafer%3D1o - 1o 3/vetherlo90XV water->log/v waterloxV etherloxveltheraxV waher VelherV waherQ2.Achieving better liquid-liquid phase extraction and 100% separation with one singleextraction, what you must to do?Organic Chemistry Ome_ap.5

Q1. The distribution coefficient, KD (Cether/Cwater), for an organic substance X at roomn temperature is 10.what relative volumes of ether to water should be used for the extraction of 90 percent of X from a water solution in a single extraction? ko - Celier C wieher as there is 90/of ettachion of solute Frome weeter in ether. %3D 9og of solute is in elher

Q1. The distribution coefficient, KD (Cether/Cwater), for an organic substance X at roomn temperature is 10.what relative volumes of ether to water should be used for the extraction of 90 percent of X from a water solution in a single extraction? ko - Celier C wieher as there is 90/of ettachion of solute Frome weeter in ether. %3D 9og of solute is in elher

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

ChapterA1: Evaluation Of Analytical Data

Section: Chapter Questions

Problem A1.22QAP

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Although other solvents are available, dichloromethane(CH₂Cl₂) is still often used to “decaffeinate” drinks because thesolubility of caffeine in CH₂Cl₂ is 8.35 times that in water.(a) A 100.0-mL sample of cola containing 10.0 mg of caffeine is extracted with 60.0 mL of CH₂Cl₂. What mass of caffeine re-mains in the aqueous phase? (b) A second identical cola sampleis extracted with two successive 30.0-mL portions of CH₂Cl₂.What mass of caffeine remains in the aqueous phase after each extraction? (c) Which approach extracts more caffeine?
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