Question

1. When you added the aqueous base to the ether solution of the mixture (naphthalane and...


1. When you added the aqueous base to the ether solution of the mixture (naphthalane and benzoic acid), TWO important things happened that resulted in extraction of the benzoic acid into the aqueous phase, what were they?

2. Very often organic solutions are washed with brine, which is a concentrated solution of sodium chloride (salt) in water. If a solution of carbon tetrachloride as the organic solvent is washed with brine and the organic and aqueous solutions allowed to settle, which will be the bottom layer and which will be the top layer? The density of carbon tetrachloride is 1.59 g/cm3 and the density of brine is 1.15 g/cm3

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Organic Chemictry Lab Post Lab Questions (Acid-Base Extraction) 1.) In this experiment, if the carboxylic acid...
Organic Chemictry Lab Post Lab Questions (Acid-Base Extraction) 1.) In this experiment, if the carboxylic acid is benzoic acid, how many moles of benzoic acid are present (assume an equal portion of each component)? How many moles of sodium bicarbonate are contained in 1 mL of a saturated aqueous sodium bicarbonate. Is the amount of sodium bicarbonate sufficient to react with all of the benzoic acid? 2.) To isolate the benzoic acid from the bicarbonate solution, the bicarbonate solution is...
An aqueous solution containing 5% acid is subjected to counter – current extraction using ether as...
An aqueous solution containing 5% acid is subjected to counter – current extraction using ether as solvent. The ether extract is found to contain 15% acid and 5% H2O. The extracted water layer contains negligible acid but has 3% ether. For every 600 lbs of acid extracted, calculate the weights of all streams in the process.
You are given a dichloromethane solution containing compounds A,B, and C. You first extract with 3N...
You are given a dichloromethane solution containing compounds A,B, and C. You first extract with 3N NaOH and find that a salt of A is in the aqueous layer. Re‐extraction of the organic layer with 3N HCl leaves only C in the organic layer. Of the following, compound A is probably: a. hexane b. benzoic acid c. naphthalene d. sodium sulfate e. benzocaine
A student performs the following steps to isolate biphenyl from a solid 1:1 mixture of biphenyl...
A student performs the following steps to isolate biphenyl from a solid 1:1 mixture of biphenyl and salicylic acid. Dissolve 2.0 grams of the mixture in 20 mL of ether Extract the ether layer 2-3 times with an aqueous solution of 5% sodium bicarbonate Add 2-3 spatula tips of sodium sulfate to the ether layer Extract the ether layer with a saturated aqueous solution of sodium chloride. Isolate the organic layer and evaporate the ether. The solid they collect at...
Suppose a reaction mixture, when diluted with water, afforded 300 mL of an aqueous solution of...
Suppose a reaction mixture, when diluted with water, afforded 300 mL of an aqueous solution of 30 g of the reaction product malononitrile [CH3(CN)2]], which is to be isolated by extraction with ether. The solubility of malononitrile in ether at room temperature is 20.0 g/100 mL, and in water is 13.3 g/100 mL. Keeping in mind that Kd is the ratio of solubilities in the two solvents what weight of malononitrile would be recovered by extraction by a 100-mL portion...
You are given a vial containing a mixture of the following compounds 1-naphthol Benzoic acid Butyl...
You are given a vial containing a mixture of the following compounds 1-naphthol Benzoic acid Butyl acetate Indole Assume the compounds are soluble in (diethyl)ether and have limited (slight) water solubility. Plan the separation of the compounds by extraction. You have a separatory funnel, your lab drawer, shared equipment, and the following reagents to use Ether 5% NaOH 10% NaHCO3 5% HCl 12M HCl 6M NaOH Na2SO4(s) 1.Describe the plan in words. Outline or describe the extraction(s) needed to separate...
1- Express the concentration of a 0.0420 M0.0420 M aqueous solution of fluoride, F−,F−, in mass...
1- Express the concentration of a 0.0420 M0.0420 M aqueous solution of fluoride, F−,F−, in mass percentage and in parts per million (ppm). Assume the density of the solution is 1.00 g/mL.1.00 g/mL. mass percentage: ppm: 2- A solution is made by dissolving 0.618 mol0.618 mol of nonelectrolyte solute in 795 g795 g of benzene. Calculate the freezing point, Tf,Tf, and boiling point, Tb,Tb, of the solution. Constants can be found in the table of colligative constants. Tf= Tb= Solvent...
1.The freezing point of an aqueous solution prepared by adding 0.0100 mol of acetic acid to...
1.The freezing point of an aqueous solution prepared by adding 0.0100 mol of acetic acid to 100. g of water is -0.190 C. The freezing point depression of pure water is 0.000 C, and the freezing point depression constant for water is 1.86 C/m. What is the value for the van't Hoff factor for acetic acid in the aqueous solution. You must show work to support your response. 2. Which of the following aqueous solutions should have the lowest freezing...
1. An aqueous solution of sulfuric acid (6M H2SO4 in water) is flowing into a tank...
1. An aqueous solution of sulfuric acid (6M H2SO4 in water) is flowing into a tank at the rate of 100 liters/min (also can be written 100 L/min) having a density of 1.34 g/cm3. Calculate value of the items requested below and make sure you show HOW you obtained them. For parts (b) - (d), first write out the equation using symbols for the appropriate variables, and then algebraically solve for the unknown variables, and finally substitute in the numerical...
1.) You will work with 0.10 M acetic acid and 17 M acetic acid in this...
1.) You will work with 0.10 M acetic acid and 17 M acetic acid in this experiment. What is the relationship between concentration and ionization? Explain the reason for this relationship 2.) Explain hydrolysis, i.e, what types of molecules undergo hydrolysis (be specific) and show equations for reactions of acid, base, and salt hydrolysis not used as examples in the introduction to this experiment 3.) In Part C: Hydrolysis of Salts, you will calibrate the pH probe prior to testing...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT