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At 573 K gaseous NO2 decomposes, forming NO and O2 gases. If a vessel containing NO2 has an initial concentration of 2.8 x 10-2 mol/L, how long will it take for 75 of the NO2 to decompose? THe decomposition of NO2 is second order in the reactant and the rate constant is 1.1 L/mol x s.
The results of the experiment supported the hypothesis of semiconservative replication, which was proposed by Watson and Crick.
the Nernst Equation to calculate the potential on the left and right. (Assume the standard potential for the left side equals 1.33 and the right side equals 0.268
Suppose a solution contains 0.25 M Pb2 and 0.49 M Al3 . Calculate the pH range that would allow Al(OH)3 to precipitate but not Pb(OH)2
what the oxidation state P in PO4^-2? what the oxidation state O in PO4^-2?
Calculate pFe2 at each of the following points in the titration of 25.00 mL of 0.02075 M Fe2 by 0.03616 M EDTA at a 6.00 pH:11.50 mL, The equivalence point
Explain why it is important that the glassware and reagents used in a Grignard reaction are completely dry. Write an equation that describes what happens if phenylmagnesium bromide reacts with water.
The volume percentage of CO2 in a mixture of that gas with N2 was determined by bubbling the mixture at 1.00 atm and 25*C through a solution of 0.0100 M NaHCO3 and measuring the pH. If the equilibrium pH was 6.50, what is the volume percentage of ..
Suppose that the gas in a storage tank exerts a pressure of 55.125 lb/in2 . What is the pressure of the gas in units of torr?
A fifty litres container of stainless steel was charged with 5.00 atm of H2(hydrogen gas) and 6.00 atm of O2(oxygen gas). A spark ignited this mixture (hydrogen gas & oxygen gas)
The next generation "ultra supercritical" power plants may operate with steam pressures of up to 300 bar. However, material strength limitations prevent operation of high pressure equipment at temperatures above 600 C.
A 1.00L Solution contains 3.50x10^-4 M Cu(NO3)2 and 2.20x10^-3M ethylenediamine(en). The kf for Cu(en)2^2+ is 1x10^20. What is the concentration of Cu2+(aq) in the solution
Acetic acid solution is titrated with NaOH solution. What is the pH at half the euivalence point?
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