Question 7In a liquid-liquid extraction using the biphasic solvent system described in Question 2, would you expect the partition coefficient forcholesterol to be less than, equal to, or greater than 1?B 1CD No way to determine Question 2Provide the distribution coefficient (Kd) for cholesterol in a liquid-liquid extraction, where the organic layer is diethyl ether and theaqueous layer is water.AK-[cholesterolla/[cholesterolletherBK-[cholesterolleher/[etherlanCK-[cholesterollether/[cholesteroljaqDK [ether]/[cholesterol]

Distribution coefficient is concentration of cholesterol in organis solvent divided by…

Question 7 In a liquid-liquid extraction using the biphasic solvent system described in Question 2, would you expect the partition coefficient for cholesterol to be less than, equal to, or greater than 1? A 4 C> D No way to determine

Question 7 In a liquid-liquid extraction using the biphasic solvent system described in Question 2, would you expect the partition coefficient for cholesterol to be less than, equal to, or greater than 1? A 4 C> D No way to determine

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...

See similar textbooks

Similar questions

Suppose that the partitioning coefficient is 3.92 with a 75.0 mL of 0.010 aqueous acid solution has a Ka of 2.lx 10-4. The aqueous solution is extracted with 100.0 mL of toluene. Find the distribution of an acid (D) at a pH of 2.789, then find the fraction in phase one, third extraction D = Type your answer here Please type your answer to submit q= Type your answer here
A dual beam UV-visible spectroscopy was used to determine the levels of Fe(II) in the run-off water of a local mine using the ferrozine assay (i) During a check of the instrument a step-like feature at 360 nm was observed in spectrum of the standard. Suggest what may give rise to this with reference to the instrument configuration and comment on how it may be remedied. (ii) The molar absorptivity of the [Fe(Ferrozine)3]2+ complex is 27900 cm−1 M−1 at 562 nm in aqueous solution (pH 5.5). If the EU maximum contaminant level for Fe is 200 ug /L and the contract required detection limit is 100 ug/L, comment on the suitability of the assay for the detection of iron. (iii) Determine the sample range, in terms of concentration and ppm, of Fe(II) that can be confidently analysed by UV-visible spectroscopy using a 1 cm cuvette. Explain with reference to an appropriate equation and solution phenomena, the origin of the limitations that define this range
Predict relative intensities at m/z 36, 37, and 38 for HCl. Let the intensity of the molecular ion be 100 and disregard contributions ,0.1%.
I need the answer as soon as possible
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 4
In column chromatography, the adsorbent alumina (Al2O₂) is slightly basic and strongly adsorbs acidic substances or materials capable of forming hydrogen bonds. True O False
At a pH of 4, the Cu-neocuproine complex formed in the liquid-liquid extraction experiment has a partition coefficient of about 6.0 when equilibrated between the acid aqueous solution and chloroform. Calculate the concentration of Cu in the chloroform phase if 31.0 mL of a 0.27 M aqueous Cu solution buffered to pH 4 is equilibrated with 23.0 mL of chloroform.
I have a question with the answer but I don't really understand it. Can you please explain the logic in this question & answer? For example, the hormone estradiolhas a partition coefficient of 3.2 between 1-octanol and water. How many extractions would need to be completed to recover > 99% from 250 mL of saturated solution using 100 mL of 1-octanol per extraction? The variables given are listed below along with the solution. In this scenario, it would require 5 extractions to recover > 99% of estradiol! Typically extractions are carried out only 2 or 3 times because the partition coefficient is usually larger than 3.2 and there are equal amounts of organic solvent and the aqueous layer.
Answer Q27, 28, 29
Discuss the following effect on the retention time (increase, decrease, remain the same or become zero) of a peak in a liquid chromatography: Raising the column temperature, Decreasing the particle size of the column material (at constant pressure), Having bubble formed in the column, Increasing the column head pressure. (i) (ii) (iii) (iv)
A 19.8474 gram vial is used to calculate ethe partition coefficient of benzoic acid in a 50/50 DCM/water mixture using 59.9 mg of benzoic acid. If the vial + benzoic acid from the DCM layer weighs 19.8819 grams, what is the partition coefficient (DCM/water)?
The O2-consumption curve of a dilute, well-buff ered suspension of mito chondria containing an excess of ADP and Pi takes the following form: Sketch the curves obtained when (a) amytal is added at time t = 1 and (b) amytal is added at t = 1 and succinate is added at t = 2.