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Assume that you need to prepare 4-methyl-2-pentyne and discover that the only alkynes on hand are acetylene and propyne. You also have available methyl iodide, isopropyl bromide, and 1,1-dichloro-3-methylbutane. Outline an efficient synthesis using any or all of the mentioned reagents to form the 4-methyl-2-pentye.
Calculate the heat of reaction for the same reaction where water is a gaseous product instead of a liquid.
Unfold the enzyme with urea and 2-mercaptoethanol. Then incubate and crystallize it in the presence of the substrate followed by X-ray crystallography.
Determine how many moles of gas were added to the container If the pressure raised to 800. torr,?
How many mole of sodium hydroxide is contained in a lye solution in which 130 grams of sodium hydroxide
Why is the catalyst Copper Chloride faster at the decomposition of hydrogen peroxide than Postassium Iodide and Lead Oxide
How many grams of oxygen would be required in the combustion of propane to produce 582 kJ of heat?
What is the specific enthalpy and specific volume of steam at 350 c and 60 bar? Is this steam super heated or saturated?
A 0.1000M solution of ethanoic acid (HC2H3O2) is only partially ionized so that [H+]=2.25X10^-3M. What is the acid dissociation constant for this acid?
At a certain temperature the rate of effusion of helium is twice the rate of effusion of a gaseous X.X is a binary combination of carbon and hydrgen.
Calculate the heat required to raise the temperature of 1.5 L of a liquid with a density 0.75 g/mL and a specific heat of 2.2 J/g/K
A 44.2 L sample of a gaseous hydrocarbon, measured at 1.00 atm pressure and 25 C is burned in excess oxygen, liberating 2.55x10^3 kj of heat at constant pressure.
Strawberries contain about 15 wt% solids and 85 wt% water.To make strawberry jam, crushed strawberries and sugar are mixed in a 45:55 mass ratio, and the mixture is heated to evaporate water until the residue contains one-third water by mass.
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