1.1a) Butyric acid is to be extracted from 500 ml of anaqueous solution containing 4 g of butyric acidusing ether as an extractant. The distributioncoefficient of this system is 3 at 25 °C. show thatthe butyric acid extracted in a single batch with 500ml ether is less than that extracted in two batchesof 250 ml portions.b) Briefly describe different strategies that can beused to obtain a chemical separation.c) Briefly discuss why chemical separations methodsare used in analytical chemistry.

Step 1:Step 2:Different strategies for chemical separation include:Distillation: Separating…

Answered: 1.1 a) Butyric acid is to be extracted…

Macroscale and Microscale Organic Experiments

7th Edition

ISBN:9781305577190

Author:Kenneth L. Williamson, Katherine M. Masters

Publisher:Kenneth L. Williamson, Katherine M. Masters

Chapter7: Extraction

Section: Chapter Questions

Problem 1Q

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Please help The petition coeficiente between benzene and water for carta iLife is approximately 3.9 .you are given a 0.35 g sample of acetanilide dissolved in 100ml of water Which of the following extraction techniques will give q better recovery of.acetanilide from water A) one extraction with 60ml of benzene or b) two successive extractions with 30ml portions of benzene? Show calculation
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3. (20 pts) The different behavior of phenol and benzoic acid with sodium hydroxide and sodium bicarbonate can be used to separate them using an acid-base extraction.. Draw a flowchart for the separation of benzoic acid and phenol using an acid-base extraction. Assume you have dichloromethane, aqueous sodium hydroxide, aqueous sodium bicarbonate, aqueous hydrochloric acid, and drying agent, and any necessary equipment available. Include enough detail so that someone in your class could perform the extraction you designed.
What method of separation would you use to isolate compound B from an ether solution containing a mixture of the two compounds below? OH A B Extract with base, isolate the aqueous layer, neutralize with acid, filter the precipitate and dry Extract with acid, isolate the aqueous layer, neutralize with base, filter the precipitate and dry Extract with base, isolate the organic layer, dry with magnesium sulfate, and evaporate the solvent Extract with acid, isolate the organic layer, dry with magnesium sulfate, and evaporate the solvent Extract with base, isolate the organic layer, neutralize with acid, filter the precipitate and dry Extract with acid, isolate the organic layer, neutralize with base, filter the precipitate and dry
6.3017g sample was weighted Analytically and made up volumetrically to 500mL. A 25mL alliqout of this solution required a total valume of 41.32mL of 0.0987MHCl to reach bromocresol green endpoint Another 25ml alligout of this salution was treated with 25mL of 0.1014M NaOH react with excess of BaCl₂ solution und left over NaOH required 21.83mL of 0.0987MHCl to reach the phenolpthelin end point. Determine the percentage of Na₂CO3 and. NaHCO3
Which of the following error will make the reported percent yield of Srli0a)2 too high? 1, Because of the porosity of the filter paper, some of the SrINO3)2 precipitate passes through the filter paper. IL. The drying oven, although thought (and assumed) to be set at 125°C, had an inside temperature of 54C III. Product is leaving in the oven (125°C) for 20 min instead of 10 min before measuring. All three I only only Om only None of the three In the Chemistry of Copper expeiment, starting mass of copper is 0.020g. If the percent recovery is 95%, what is the mass of Cu metal obtained at the end of the experiment? QUESTION 14 95.00 g O 0,950 8 O0.198 0.020 O 0.0198
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Data provides in picture attached. Calculate the concentration of CH3CNH+ in CH3CN at 25º C.
(2) Sally starts eluting her column with petroleum ether in hopes of separating her 50:50 ferrocene: fluorenone mixture. She notices her mobile phase getting low when there is limited separation between her two components. She eagerly adds more solvent to avoid her column from drying out. Sally then realizes she poured from her 1:1 petroleum ether: diethyl ether beaker rather than her petroleum ether beaker. (a) Using the molecular view below, explain how this would impact her product elution from the column. top of column H buret wall AI H H H H H H H H H H bottom of column buret wall (b) How does this error impact her experimental results? (c) Using pictures and words, how could Sally analyze the purity of her product? Fe
1. A solution containing 5.0 g of n-butyric acid in a 100 mL of water was extracted two times with 25-mL portions of chloroform. Given the distribution coefficient, K, for chloroform-water, is 5.0, calculate thetotalamount of n-butyric acid extracted from the water. Show all calculations.
1a. Use the given table to construct a temperature-composition diagram for cyclohexane Toluene mixture. Based on the plot, what is the composition of the distillate obtained by Simple distillation 20 mole percent cyclohexene and 80 mole percent toluene? Show your Work on the plot. 1b. Estimate the composition of the distillate of 20 mole percent of cyclohexane if the Distillation column had three theoretical plates.

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