How and why does 2-Naphthol differ from benzoic acid when adding NaHCO3
How and why does 2-Naphthol differ from benzoic acid when adding NaHCO3
For extractions, why is it important to extract the organic mixture first with NaHCO3 and then with NaOH but not the other way around (that is, extraction with NaOH before with NaHCO3) Explain. I have a mixture of benzoic acid, 2-naphthol, and diphenyl ether.
Lab 7: Question 2 Homework. Unanswered Why is aqueous NaHCO3 used for the initial extraction of the unknown sample? Why was NaOH not used prior to NaHCO3? O A Because NaHCO3 deprotonates 3-chlorobenzoic acid and NaOH does not O B Because NaOH deprotonates both 3-chlorobenzoic acid and 2-naphthol 0 C Because NaHCO3 deprotonates both 3-chlorobenzoic acid and 2-naphthol
How does the process of Forward Selection differ from the process of Backward selection when adding and subtracting variables in multiple regression.
O 5. For a mixture of salicylic acid, 1, naphthol, 2, and naphthalene, 3, Which of these bases could remove a proton from 1 but not the others? НО A). H2CO3 B). NaHCO3 C) H2O D) NaOH YOH YA OH
12) Water was found to be a suitable solvent for recrystallization of benzoic acid. How should the solution of benzoic acid be prepared during the recrystallization? a. by dissolving the solid in a maximum volume of the boiling solvent b. by dissolving the solid in a minimum volume of the boiling solvent C. by adding 10 ml of hot solvent, in small portions to the solid and stirring until the solid dissolves x d. by adding 10 ml of the...
An unknown mixture (dissolved in diethyl ether) contains only 2 of the following : benzoic acid, phenol, aniline and napthalene. You use the acid-base extraction method and want to identify the 2 compounds in your original mixture. 1) To separate the organic acid you add NaOH and to separate the organic base you add HCl.In both cases these extractions are followed by extractions with water. Why do we add water? Why is this step important? (A clear explanation please). 2)When...
How does part b differ from part a and how do I go about solving this? Preparing for the lab: Exercise #3 Your TA asks you to make 100 mLof a benzoic acidbenzoate buffer solution of pH 4.40. The Ka of benzoic acid is 6.5 x 10 s. a) Determine the volumes of 0.50 M benzoic acid and 0.50 M sodium benzoate required to make 100.0 mL of a pH 4.40 buffer solution. b) Determine the volumes of0.50 M benzoic...
Post Lab Question: (Seperation of Benzoic Acid from Biphenyl, Crystallization and IR) Why is the beaker containing the bicarbonate extracts cooled before adding HCl?
Why is the partition coefficient different for benzoic acid and sodium benzoate? Explain chemical reasons why the two values differ. Especially note the type of intermolecular forces that exist in the solute and the two solvents. Partition Coefficient of Benzoic Acid Benzoic acid in water layer and organic layer (dichloromethane) as organic layer. 3.1 Partition Coefficient of Sodium benzoate Benzoic acid in aqueous layer (water and sodium bicarbonate) and dichloromethane as organic layer. 0.12
14. (3 pts.) The ionized benzoic acid dissolves better in water than it does in diethyl ether, which is how and why it is extracted into the water phase. Give the most important IMFs that are responsible for solubilizing the benzoic acid anion in the water. Give also the most important IMFs that are responsible for solubilizing the sodium cation in the water. The kinds of strong IMF that could be present are ion-dipole, hydrogen bonding (ignore dipole-dipole and induced...