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Acid and Base Organic Chemistry

Separation of Amines and Carboxylic Acids Using Extraction

Initially have a sample of a water-insoluble, neutral organic compound dissolved in 50 mL methylene chloride that may be contaminated with: -Organic carboxylic acid and/or -Organic amine base The organic neutral compound will be a solid while the acid/base impurities can either be solids o

Preparation of Sulfaniliamide: Chlorosulfonation Step

1) What happens when chlorosulfonic acid comes in contact with water? 2) How will you safely destroy any residual of chlorosulfonic acid remaining on your glassware? 3) Why do experimenter says "The reaction is most easily controlled when acetanilide is in the form of a hard cake, the dried solid is melted, as the melt coo

pH of the HBrO and NaBrO mixture

11. The Ka of HBrO is 2.5 x 10-9 When eql volumes of 0.1 M HbrO and 0.1 M NaBrO are mixed the pH of the solution will be A. Between 0 and 1 B. Between 4 and 5 C. Approximately = 7 D. Between 8 and 9 E. Between 9 and 10 Justify your answer with a calculation .......................................................

Synthesis of Salicylic Acid

In the synthesis of salicylic acid, what is the function of NaOH? I think that it acts as a electrophile. Is that correct? Does it also Deprotonate methyl salicylate ? Act as a Nucleophile? Act as a catalyst? Thank you for your help.

pH Indicators / Dilution (NaOH)

Scenario: You took 7 test tubes. In #1 you mixed 5ml of 0.1M NaOH and 5ml of H2O together. In the other 6 test tubes, you added 9ml of H2O. You took test tube #1 (with 5ml 0.1M NaOH and 5ml H2O) and added 1ml to test tube #2. Take test tube #2 and add 1ml to test tube #3. take test tube #3 and add 1ml to test tube #4 and so o

Synthesis of Sulfanilamide: Acetylation of Aniline

1) Why is an acetyl group added to aniline (making acetanilide) and then removed to regenerate the amine group in sulfanilamide? 2) "Dissolve 5.0 g (0.054 mol) of aniline in 135 mL of water and 4.5 mL (0.054 mol) of concentrated of hydrochloric acid; if the solution is colored, filter it by suction through a pad of decolorizing

Organic compounds in household items

I have been trying to figure this out and I am very confused. Here is my problem. Find two or more products in the home that contain organic molecules. From these products, make a list of 10 organic compounds present in the products. For each compound names identify a functional group with compounds would contain. Then, based

pH Indicators for Solutions

Scenario: You took 7 test tubes. In one you mixed 5ml of 0.1M HCI and mixed 5ml of water together. You add 9ml of water to the other 6 test tubes. If you take the original test tube (the one that you mixed 5ml of 0.1M HCI and 5ml of water) and put 1ml into test tube #2. If you took test tube #2 and put 1ml into test tube #3 a

Hypochlorite Oxidation of Methyl Ketones ( Haloform Reaction )

I am reacting Acetophenone with bleach in excess to form benzoic acid and chloroform. During the reaction Sodium sulfite was used to detroy any unreacted bleach. I extracted the mixture of acetophene and bleach with 1.0 ml ether, after heating the solution and adding sodium sulfite. The reaction mixture was then acidfied add

Freidel Craft Reaction: Paraformaldehyde and Mesitylene

1) What is the number of moles of formic acid and water in 4.5 mL 95% formic acid? Assume percent is by weight and the density is 1.25 g/mL. 2) What is the difference between paraformaldehyde and formaldehyde? Please explain it in detail. 3) What are the dangers involved in using formic acid and paraformaldehyde? 4) Show the

Hypochlorite Oxidation of an Alcohol: Cyclohexanone

Basically in this experiment, we took some cyclohexanol and reacted it with hypochlorite to form cycohexanone. 1.)In this experiment, why is a solution of sodium bisulfite added to the reaction product mixture? Write a reaction to account for what is happening. Is the Bisulfite ion acting as an oxidizing or reducing agent?

An Equilibrium Problem

C2H5CO2H(l) + C3H7OH(l) ---> C2H5COOC3H7(l) + H2O(l) 18.5 mL propanoic acid are mixed with 19.0 mL n-propanol to produce n-propyl propanoate when heated and distilled. At room temperature, the equilibrium constant, Keq is approximately 3. Calculate the number of moles of reactants and products expected in the equilibrium

Synthesis from benzene, toluene or alcohols (4C or less)

Outline the possible synthesis of each of the following compounds from benzene/ toluene using any necessary aliphatic or inorganic compound 1) butyl benzene 2) 1-phenylethanol 3) 3-bromobenzoinc acid 4) phenylethene 5) 4-chlorophenol 6) 3-chloraniline 7) 2,4,6 trinitophenol 8) 2-chloro-4-methylphenol 9) 4-chl

10 Questions About Reactions of Carbonyl Compounds

The reaction of a carboxylic acid with an alcohol in the presence of acid is termed Fischer esterification. 1) the nucleophile in this reaction is: _________ 2) compound C functions as ____________ in the reaction a) neutralizer b) catalyst c) solvent d) base scavenger 3) Fischer esterification is an exampl

Percent Recoveries in Recrystallization Lab Experiment

I have a chemistry problem. In lab we did the experiment Recrystallization. I would like to know if my values that I got in the laboratory are sensible and my percentage recovery. The mass of my impure aspirin was 0.250mg. My volume of solvent used for my impure aspirin was 3.25ml. I got this value from my 2.50ml of water used a

Methane and Methanol Difference

The difference between methane and methanol is an -OH group replacement of a H group. What difference does the -OH group make in this case? Whats the potential for exposure, the most likely exposure routes, and the toxicity effects with it?

Reduction Mechanisms for Formadehyde and Formation of Ethylene Glycol

Given the following: methanoic acid (CH2O2) + heat + reduction = CH2O (formaldeyhde vapor) ethanoic acid (C2H4O2) + heat + reduction = CH3O2 (acetaldehyde vapor) 1) Is it reasonable to assume that these aqueous organic acids when heated to vapor will in fact lose an oxygen and convert to formaldehyde and acetaldehyde vapo

Alcohols as Bases

Why is the pKa of water 15.74 smaller than the pKa of simple alcohols?

Why Do I Require More CaCO3 to Raise pH than Predicted?

If you can remember back to a discussion and inquiry we exchanged last week concerning the use of sodium carbonate vs. calcium carbonate. If you'll recall we were theorizing as to why differing amounts of carbonate in a titration experiment were needed to raise the pH of a solution from 4.0 to 5.0. When we assumed 100% solubi

How did I get a greater than 100% recovery of benzoic acid?

To quickly summarize, the lab dealt with isolating benzoic acid from a mixture via chemically active extraction. The mixture consisted of cellulose, methyl orange and of course the benzoic acid. We had to weigh about 4.0 g of the mixture. I weighed 4.08g. I did the lab, and after letting the benzoic acid dry I obtained 10.91

If I have a 1 liter aqueous solution that contains 15 mg/l methanoic acid and 15 mg/l ethanoic acid, what amount of calcium carbonate is needed to reduce each acid concentration by at least 50%?

If I have a 1 liter aqueous solution that contains 15 mg/L methanoic acid and 15 mg/L ethanoic acid, what amount of calcium carbonate is needed to reduce each acid concentration by at least 50%? The only other information given is the pKa values for each acid which are 3.75 for methanoic acid and 4.70 for ethanoic acid.