Provide a method for determining the Ka of acetic acid by titration with NaOH based on the data below. Show details of the calculations. Titration #1 4 drops of methyl red indicator (to show endpoint). Burette fill with 50ml of 0.1 M NaOH. Titrate by adding 1ml increments of NaOH. Continue titration past the endpoint t
1. What types of bombs were dropped on Hiroshima and Nagasaki, resulting in Japans surrender at the conclusion of WWII? What isotopes were used in the bombs? What were the long term effects of these bombs? 2. How much radiation is someone exposed to during a routine xray? How much radiation are people exposed to naturally fro
Preparation of Sulfanilamide: Ammonolysis Step (Hydrolysis of p-Acetamidobenzenesulfonamide) (Last Step)
" Transfer the amide to a well-drained reaction flask, add 5 mL of concentrated hydrochloric acid and 10 mL of water (for each 5 g of aniline), and boil the mixture gently until the solid has all dissolved (5-10 min); then continue the heating at the boiling point for an additional 10 min (do not evaporate to dryness). The solut
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
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
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 .......................................................
Please see the attached file.
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.
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
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
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
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
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
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
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?
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
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
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
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
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?
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
Assorted NMR Multiple Choice Questions (please see picture files).
1. Show the absolute configurations of stereocenters in brucine. 2. Draw mirror images of the following 9 compounds and determine which are chiral. (Please see the attached file.)
10 Multiple Choice Questions about Distillation Techniques (please click on files for details)
Multiple choice questions relating to IR, UV and NMR spectroscopy. Please click on files for details.
Write the resonance structures that explain why the radical formed when vitamin C (ascorbic acid) loses a proton and an electron is so stable?
Why is the pKa of water 15.74 smaller than the pKa of simple alcohols?
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
What is the reaction mechanism between Methacrylic Acid and 4-Vinyl Pyridine?
Sodium Carbonate vs. Calcium Carbonate as a Neutralizing Agent : Mass of Carbonates Needed to Raise Solution pH One Unit
An actual lab titration of a mildly acidic process water at a pH of 4.0 requires 0.9 grams/liter of Na2CO3 to raise the pH from 4.0 to 5.0; re-running the titration but this time using CaCO3 requires 2.2 grams/liter of CaCO3 to raise the process water pH from 4.0 to 5.0...essentially a 2.25X difference. If we assume these tit