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What is the reaction scheme of the isolation and purification of nutmeg triglycerides showing the extraction, saponification, and urea complex formation steps? A solvent mixture of ethyl acetate, ethanol, and water was used.
question a buffer solution is prepared by adding 0.125 mol of ammonium chloride to 500 ml of 0.500 m solution of
you prepare a buffer solution by dissolving 1.77 g each of benzoic acid hc7h5o2 and sodium benzoate nac7h5o2 in 900.0
A 3.0 L bulb contained helium at 156 mm Hg is connected by a valve to a 2.0 L bulb containing Ar at 180 mm hg. Calculate the partial pressure of each element after the valve is opened and calculate the total pressure after the valve is opened.
Develop a stoichiometry problem that includes finding a mass of reactant/product from another mass of reactant/product. This can be a chemistry problem or use an everyday problem.
Analysis of a 1.000 g of the oral hypoglycemic agent metformin yielded 0.3720 g of carbon, 0.0858 g of hydrogen, and 0.5422 g of nitrogen.
question what is the initial temperature degc of a system that has thepressure decreased by 10 times while the volume
A piece of gold foil has a volume of 0.645cm^3. If the piece of gold measure 10.0 cm by 12.5cm, what is the thickness of the foil
One important daughter nucleus produced in the decay of Tellurium-132 is Iodine-132 which has a half life of 2.3 hours. What will be the count rate for a sample of Iodine-132 separated 9.3 hours after the preparation of a fresh source of Tellurium..
Calculate the volume of the acid solution needed to completely neutralize the base in the flask, 2.Calculate the pH for the initial base solution in the flask ;the point at which 20mL of the acid has been added
Hydrogen has three isotopes (1H 2H and 3H) and chlorine has two isotopes (35Cl and 37Cl). How many isotopic kinds of HCl are there. Write the formula for each, and tell how many protons, neutrons, and electrons each contains.
Electrophilic bromination on 3-phenylpropanenitrile occurs preferentially at the ortho and para positions. Assuming substitution at the meta position, draw the three resonance structures of the carbocation intermediate.
Problem- Both raw materials necessary for the manufacture of Nylon 6-6 can be synthesized from 1,3-butadiene. The first step is 1, 4-addition of chlorine. Write the mechanism for the 1, 4-addition of chlorine.
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