Q3-A 1000 Liter of UST containing carbon tetrachloride, which has a water solubility of 911 mg/L and 1.594 specific gravity, is spilled into a shallow aquifer. If 1000 m³ of ground water have been polluted with carbon. tetrachloride . Find the volume of each of dissolved and non- dissolved carbon tetrachloride. Where will the NAPL phase will be found ? 8:39 PM

Q3-A 1000 Liter of UST containing carbon tetrachloride, which has a water solubility of 911 mg/L and 1.594 specific gravity, is spilled into a shallow aquifer. If 1000 m³ of ground water have been polluted with carbon. tetrachloride . Find the volume of each of dissolved and non- dissolved carbon tetrachloride. Where will the NAPL phase will be found ? 8:39 PM

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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1. Calculate the percent by volume of acetic acid by fermentation. Assumptions: No volume changed during fermentation and conversion efficiency is 85%. Overall chemical reaction facilitated by Acetobacter aceti:C2H5OH + O2 = CH3COOH + H2OGiven: Volume of 6% C2H5OH = 3 LMolar mass of C2H5OH = 46.07 g/molMolar mass of CH3COOH = 60.06 g/molDensity of C2H5OH = 0.789 g/mLDensity of CH3COOH = 1.05 g/mL
Each of the student statements below is wrong. Explain why they are not correct. (a) All my compound dissolved right away in the small amount of solvent I added at room temperature, and I didn’t need to heat it at all. This means I’m going to get lots of pure compound out. (b) I did a recrystallization of naphthalene and my percent recovery was very high (99%), so I must have pure product. (c) When you’ve dissolved all your compound in hot solvent, and you’re in a hurry, it’s ok to just place it straight into the ice bath.
Please tell me how to get this answer (step-by-step) including equations used. Thank you! 40 mL of a 35% v/v acetic acid solution is needed. In the stock room is a bottle of 50% v/v aceticacid. How much water should be used as the diluent?ANS: 12 mL of water is needed
kindly help me with this problem thank you ill give like for the answer mixture consists of a certain amount of caffeine dissolved in 100 ml. of water a) How much caffeine was originally used when 0.31 g of the organic compound was devolved n watt:, and 150 ml ether was used as extraction solvent b) How much was dissolved n ether
A 0.9000-g of KIO3 is dissolved in 500-mL distilled water. A 50.0-mL aliquot portion was run down into an Erlenmeyer flask and 2-g of KI and 2-mL of 6M HCl were added to it. Directly after, the solution was titrated with a 24.80-mL Na2S2O3 solution to a faint yellow solution. Starch TS was added to the resulting solution and the titration with the Na2S2O3 solution continued wherein an additional 1.33-mL was required to bring the blue color of the solution to disappear completely. MW: KIO3 = 214.0 g/mol ; Na2S2O3 = 158.1 g/mol Compute the N of the Na2S2O3 solution. None of the choices 0.09657 N 0.1075 N 0.1017 N
Thank you. 0.02 kg plant extract in 2dm3 of water was shaken with 0.1dm3 ether. Upon checking, 1.7x10-3 kg of plant extract passes into the ether. note that there are no changes in the molecular state of the plant extract. what amount of the plant extract was left unextracted if the aqueous solution was shaken with 0.1dm3 ether the second time?
Solution:- 3. Determine the amount, in of a (2.20 M s olution of dichloromethane needed to completely react with 15.72g cyclohexene to give 1,2-dibromocuclohexanw. Assume 12% excess is needed in order to react completely. a . How much 1,2 -dibromocyclohexane would theoretically be produced ? c. How many ML of the 2.20 M Br2 solution are required?
1.Each of the student statements below is wrong. You will need to explain why they are not correct. (a) All my compound dissolved right away in the small amount of solvent I added at room temperature, and I didn’t need to heat it at all. This means I’m going to get lots of pure compound out. (b) I did a recrystallization of naphthalene and my percent recovery was very high (99%), so I must have pure product. (c) When you’ve dissolved all your compound in hot solvent, and you’re in a hurry, it’s ok to just place it straight into the ice bath.
The separation and purification processes given below and the method used against them are given. Which or which of these pairings are correct? I. Brewing of tea - ExtractionII. Purification of water impurities - ChromatographyIII. Separation of olive pomace from olive oil while producing olive oil-DecantationIV.Petroleum fractions obtaining - Ordinary distillationV. Obtaining essential oils and using them in perfume making - Water-steam distillation
Carboxylic acids, including fatty acids and benzoic acids, are often present inboth municipal and industrial effluents. Describe a sample preparationcombined with GC method for identification and determination of carboxylicacids in raw wastewater at ppb (µg L-1) level. Point out a suitable samplepreparation technique and GC conditions in details and give justifications foryour choice
Please answer it ASAP and CORRECTLY for an upvote. Thank you. Benzoic acid is 9 times more soluble in chloroform than in water. The percent benzoic acid that will remain from a water solution of benzoic acid if 13. Equal quantity of chloroform and water is used is 14. Twice as much chloroform as water is used is 15. If extraction as in Problem 13 were followed by an extraction as in Problem 14 is
2. A countercurrent extraction cascade is used to extract acetone (A) from its mixture with water by means of methyl isobutyl ketone (MIK). The feed consists of 40 weight percent acetone and 60 weight percent water with an equal amount of MIK. How many stages are needed so that the extract contains 20% acetone and the raffinate contains 10% acetone? Use and show tertiary diagram.