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Hypochlorite Oxidation of Methyl Ketones (Haloform Reaction)
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 adding drops of 3 Molar HCl. The white precipitate formed (benzoic acid) was collected and IR analysis was used to verify the product.
1. What is the role of sodium sulfite? How does it work? Please use an equation to explain this.
2. Why was the work-up step so important in this experiment? What can be found in the top layer, and the bottom layer in the extraction step?
3. Why was a strong acid (3M HCl) used for acidification of the alkaline phase?
4. How would a solubility test and a carboxylic acid test help to confirm that a carboxylic acid is your product?
An aliquot of 14.045 grams of this solution is titrated with 0.1043 M hydrochloric acid (HCl.) and it required hydrochloric acid (HCl solution) of 29.18 mL to reach the methyl red endpoint. Compute the weight % Ammonia (NH3) in the aqueous waste.
2000°C the equilibrium constant for the reaction is Kc = 2.4 103. 2 NO(g) N2(g) + O2(g) If the initial concentration of NO is 0.150 M, what are the equilibrium concentrations of NO, N2, and O2.
How much heat is required to warm 227 g of ice from -45.5°C to 0.0°C, melt the ice, warm the water from 0.0°C to 100.0°C, boil the water, and heat the steam to 173.0°C.
The initial concentration of the reactant A in a first-order reaction is 1.2M. After 69.3 s, the concentration has fallen to 0.3M. What is the rate constant k
You are given a worked wooden item from an archaeological dig believed to date to during the last glaciation. As such, the artifact would be another piece of evidence.
Determine the amount of heat energy is needed to raise the temperature of 0.362 kilograms of Cu from 23. Degree Celsius to 60 degree Celsius?
What are some reasons why there would be a difference between the expected and actual values for the moles of copper oxide produced from heating copper in the air.
what is the energy in joules of a mole of photons with visible light of wavelength 486nm.
Explain would the calculated molarity of NaOH be too high or too low If the KHP weighed in your experiment today was contaminated with some unknown inert substance.
A lungful of air (500 mL) contains 4.1% CO2 by volume. How many grams of KO2(s) is needed to remove the CO2 from a lungful of air at STP according to the following reaction?
Description of amino acids, Chiral compounds occur when a carbon atom has four different things bonded to it. All but the simplest amino acids (glycine) are chiral because the alpha carbon has an amine group
what is the broglie wavelength of an electron moving at one-tenth the speed of light. mass of the electron = 9.109* 10^-28
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