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Discuss the importance of tautomerism in aromatic heterocyclic chemistry. You should use appropriate examples, mechanisms and chemical structures to aid your answer.
Show how dithioacetals have found a use in Organic synthesis. Illustrate your answer with appropriate examples.
The Swern oxidation reaction is a mild method for the oxidation of primary alcohols to aldehydes and secondary alcohols to ketones. Draw the full mechanism of the Swernoxidation reaction using an appropriate example to illustrate its use.
Draw and explainthe full mechanism of the Arbuzov reaction of PhCH2Br and P(OEt)3to generate a phosphonate ester.
Show an example of the use of Palladium catalysis in synthesis. Show the fully labelled catalytic cycle for the example you chose
Let x1 and x2 represent the mole fractions of 1-propanol and 2-propanol in a liquid mixture, respectively and y1 and y2 represent the mole fractions of each in the vapor phase. For a solution of these liquids with x1=.680, calculate the composition..
how much energy in kilojoules is required to convert 255 of diethyl ether at its boiling point from liquid to vapor if
A X^2+ ion derived from a metal in the first transition metal series has four electros in the 3d subshell. What element might X be?
Calculate the temperature increase of the bullet. ° C (b) After a short time the bullet and the block come to the same temperature T. Calculate T, assuming no heat is lost to the environment. ° C
Problem- A 75.5 mL aqueous solution contains 0.320 mol of KOH and is 20.0 % by mass KOH. Calculate the density (kg/m3) of the solution. Provide complete calculation with explanation of each step
In the following reaction, what mass of mercury(II) oxide, HgO, would be required to produce 473 L of oxygen, O2, measured at STP
A volumetric pipette was found to deliver 5.01 mL of ethanol at 24°C. The mass of the ethanol was measured to be 3.9462 g. What is the density of ethanol at 24°C
Thallium-207 undergoes β decay to form lead-207. This decay has a half life of 4.80 minutes. Explain how many grams of the parent will remain after 28.8 minutes if the original mass of the parent is 14.5kg
di ethyl ethal is a volatile, highly inflammable organic liquid that is used mainly as a solvebt. the vapour pressure of di ethyl ethal is 4.01mmHg at 18 degree celcius.
Ammonia is produced from the reaction of nitrogen and hydrogen according to the following balanced equation: N2(g) + 3H2(g) 2NH3(g)
Calculate the mass of the precipitate formed when 2.27 L of 0.0820 M Ba(OH)2 is mixed with 3.06 L of 0.0664 M Na2SO4.
Question- Molecular Bromine can add to a conjugated diene giving a dibromo compound with both the 1,2- addition regiochemistry and the 1,4- addition regiochemistry. Draw both products.
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