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The equilibrium constant (Kc) for the reaction shown below is 4.17 10-34 at 25°C. 2 HCl(g) reverse reaction arrow H2(g) + Cl2(g) What is the equilibrium constant for the following reaction at the same temperature? H2(g) + Cl2(g) reverse reaction arrow 2 HCl(g)
2-hexanol was prepared by reacting an alkene with either hydroboration-oxidation or oxymercuration-reduction. Draw the structure of the alkene that was used to prepare the alcohol in highest yield.
What is the density (in g/L) of a mixture of equal numbers of moles of N2 and CO2 gas in a 8.00 L container at 298K if the pressure exerted is 19.0 atm
A multiple series dilution was performed. The sample was diluted 1/5, 1/2, 1/4, 1/2. What is the final dilution
determine the average separation distance between the quantum dot and an adjacent gold nanoparticle for the molecular beacon (in the absence of the target sequence).
A solution is prepared by adding 20.0 mL of 0.100 M KI to 20.0 mL of 0.100 M AgNO3. The potential of the solution is measured with a silver indicator electrode with respect to the saturated calomel electrode. Use activities in this problem.
the resulting mixture has (pb2+)i=1.0x10^-3M, (so4^-2)i=1.0x10^-4 for pbso4 ksp=1.3x10^-8. compare qsp to ksp and decide whether a precipitate will form.
The concentration of Mg2+ in a sample of water is 262 mmol/L At what pH will 99% of the Mg2+ be precipitated as Mg(OH)2? Ksp = 8.9 x 10-12
What is the driving force for the rearrangement of intermediate carbocations during the dehydration of alcohols
Calculate the total mass of the protons and electrons in 19/9F. Use 1.007825 amu as the mass of 1/1H(mass of a proton and an electron). Express your answer in atomic mass units to 6 significant figures.
Calculate the mass(in grams) of solids you must measure out to prepare 100 mL each of 0.025 M CuSO4, 0.025 M Ca(NO3)2, 0.025 M Al(NO3)3, and 0.025 M KCl.
If a car has an EPA mileage rating of 30 miles per gallon, What is this rating in km L-1? 1 liter = 1 dm3, 1 gallon = 3.785 liter, 1 mile = 1.609 km.
How many grams of urea [(NH2)2CO] must be added to 345 g of water to give a solution with vapor pressure 2.45mmHg less than that of pure water at 30 degrees Celsius?
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