You have an aqueous solution of pyridinium chloride (C6H5N'HCI) and you want to extract it with a second solvent where it would bemore soluble. Which of the following should you do to accomplish the said task?Mix 3M NaOH, acetone, and the aqueous layer in a separatory funnel, shake, release build-up pressure, return toAstand, and let the mixture separate into two layers.Mix methanol and the aqueous layer in a separatory funnel, shake, release build-up pressure, return to stand, and letthe mixture separate into two layers.Mix 3M NaOH, toluene, and the aqueous layer in a separatory funnel, shake, release build-up pressure, return tostand, and let the mixture separate into two layers.Mix dichloromethane and the aqueous layer in a separatory funnel, shake, release build-up pressure, return to stand,Dand let the mixture separate into two layers.

Like dissolved like, polar compounds are soluble in polar solvent and nonpolar ones are soluble in…

Answered: You have an aqueous solution of…

EBK A SMALL SCALE APPROACH TO ORGANIC L

4th Edition

ISBN:9781305446021

Author:Lampman

Publisher:Lampman

Chapter79: Solubility

Section: Chapter Questions

Problem 1P

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A solution is made by dissolving 34.0 g of NaCl in 100 g of H2O at 0C. Based on the data in Table 8-1, should this solution be characterized as a. saturated or unsaturated b. dilute or concentrated
The blue line on the diagram illustrates the effect of using fractional distillation to separate a mixture of hexane (C6H14) and heptane (C7H16). If one starts a fractional distillation with a 0.20 mole fraction of hexane, what is the approximate mole fraction of hexane in the vapor phase after two evaporation condensation cycles? Figure B A temperaturecomposition diagram for hexane (C6H14)-heptane (C7H16) mixtures.
A solution is made by dissolving 0.455 g of PbBr2 in 100 g of H2O at 50C. Based on the data in Table 8-1, should this solution be characterized as a. saturated or unsaturated b. dilute or concentrated
2. You have a solution that contains 4.0g of oxalic acid dissolved in 100 mL of water. This solution is placed in a separatory funnel, and then 100 mL of diethyl ether is added to the separatory funnel and an extraction is performed. (Diethyl ether and water are immiscible solvents.) Use the following constants to calculate how much oxalic acid is in each solvent after the extraction. Solubility of oxalic acid in water = 9.5 g / 100 mL Solubility of oxalic acid in ether = 16.9 g/100 mL
Why is benzoic acid insoluble in water while sodium benzoate is soluble? How are their chemical structures related to their solubility? Which of them - benzoic acid or sodium benzoate - will be more soluble in CHCl3 and why?
Calculate the values for log Kow and the saturated aqueous solubility (Cw$sat) for bisphenol A. The value for log Kow is 3.62 ; enter your answer as X.XX The value for Cwsat is ; report your answer in units of moles/liter and enter it as X.XX×10(-X). Bisphenol A is closest to "phthalates" H3C CH3 HO HO,
Caffeine can be extracted from tea bags using liquid-liquid extraction. After extracting the tea in hot water, sodium carbonate can be added to form the starting aqueous solution. In a separatory funnel containing 20 mL of diethyl ether, the same volume of aqueous solution will be added. The same procedure will be done in another separatory funnel but this time the organic solvent is hexane. Both separatory funnels will be shaken to release the pressure, and let stand to promote layer separation. The organic layers now containing caffeine will be separated into separate beakers. The beakers were then dried using calcium chloride (CaCl2). The beakers containing both solvents will be dried to obtain the isolated caffeine. What is/are the function/s of calcium chloride in the extraction?
No need for water, the system is cold All the following are correct according to solvent pair, except: * Used when substance is too soluble in one solvent and insoluble in another Help in the step of selection of solvent First begin with the substance soluble in solvent then the less soluble Must be completely immiscible Given n-hexane (bp 69°C) and cyclohexane (bp 81-C) in a mixture for
The followings methods are useful to induce crystallization EXCEPT adding a small crystal of the desired compound, called a seed crystal, to the solution adding anhydrous potassium carbonate to the solution and cooling it in an ice bath scratching the inner wall of the Erlenmeyer flask with a glass stirring rod reheating the solution to boiling to boil off some of the solvent, and then allow the solution to cool to room temperature again to effect crystallization
Supposed you are in a chemistry laboratory and your CHEF102B teacher gave you a 500 ml Erlenmeyer flask containing 200 ml of heterogenous liquid mixture. This liquid mixture consists of sodium chloride, water, benzoic acid, is made by combining Mixture A and Mixture B. Mixture A (aqueous mixture): sodium chloride is dissolved in distilled water. Mixture B (organic mixture): benzoic acid, phenol and aniline is dissolved in petroleum ether (a nonpolar solvent). Your task is to separate the components of the heterogenous mixture and identify the components.
Cyclonite, also known as RDX (Research Department Explosive), is used to make Semtex, a plastic explosive, when mixed with PETN. Semtex was used in the bomb that brought down PanAm flight 103 over Lockerbie, Scotland in 1988 killing 270 people. RDX is typically recrystallized from acetone. 1 gram of RDX is soluble in 100 mL of cold acetone (0 0C) and in 25.0 mL of boiling acetone. A student performed recrystallization starting with using 5.0 mL of acetone. a. What is the maximum amount of crude RDX the student can purify given this volume of acetone in order to maximize the % recovery? b. A student reported 65% recovery from the process of recrystallization after using 5.0 mL of acetone and the mass that can be used with that volume (part a). Is 65% the maximum % recovery of RDX using the volume you calculated in part a? Show your work.
Describe how to prepare 100 mL of approximately 60% (w/v) NaOH from solid NaOH

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