Why is water used for liquid-liquid extractions? Select all that apply. Pourquoi l'eau est utilisée pour les extractions liquide-liquide? Sélectionnez toutes les bonnes réponses possibles. Because it is inexpensive Parce que c'est peu dispendieux Because it is good to separate neutral organic compounds Parce que c'est effficace pour séparer les composés organiques neutres Because it is more environmentally friendly Parce que c'est meilleur pour l'environnement To remove inorganic impurities Pour retirer les impuretés inorganiques To remove salts Pour retirer les sels

Why is water used for liquid-liquid extractions? Select all that apply. Pourquoi l'eau est utilisée pour les extractions liquide-liquide? Sélectionnez toutes les bonnes réponses possibles. Because it is inexpensive Parce que c'est peu dispendieux Because it is good to separate neutral organic compounds Parce que c'est effficace pour séparer les composés organiques neutres Because it is more environmentally friendly Parce que c'est meilleur pour l'environnement To remove inorganic impurities Pour retirer les impuretés inorganiques To remove salts Pour retirer les sels

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question 1 You are employed as a co-op student at the Drug and Alcohol Testing Association of Canada (DATAC) developing analytical tests for sports doping agents. You are asked to prepare a procedure for the extraction of methylphenidate, the active compound in Ritalin, from urine samples (consider them as simple aqueous layers, you do not need to consider other components!). The goal of the procedure is to extract the methylphenidate into an organic layer which will then be evaporated and the residue will be tested for the drug. You find that methylphenidate is highly soluble in 2-methyltetrahydrofuran, a bio-renewable solvent. Draw the structure of 2-methyltetrahydrofuran and give two reasons why it is a good solvent choice for liquid-liquid extraction. (Please find the image attached below to help you with this question) Question 2 (cont. from scenario 1). Your colleague is helping you develop the urine test. They suggest that the urine should be adjusted to a pH above 7 before…
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