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The rate constant for the reaction 2N2O5(g) → 4NO2(g) + O2(g) is k = 3.38x10-5/s at 25oC. a) Enter the half-life of N2O5 in seconds. Use two significant figures and do not enter units. b) Enter the total pressure in kPa 10 seconds after initiation of the reaction if initially there was 88.3kPa of pure N2O5 vapor. Use two significant figures and do not enter the units. c) Enter the total pressure in kPa 10 minutes after initiation of the reaction if initially there was 88.3kPa of pure N2O5 vapor. Use two significant figures and do not enter the units.
An optimization from a particular starting structure of a compound C5H10O2 leads to an energy of 25.12 KJ/mol.
The electron in the n = 5 level of a hydrogen atom emits a photon with a wavelength of 1280 nm. To what energy level does the electron move?
5 ml of acetic anhydride and 5 drops of phosphoric acid is added to 2 g of salicylic acid. Calculate the molar excess of the acetic anhydride (density = 1.08 g/ml)
what is the value of equilibrium constant Kp if the total pressure is 11 atm?
Draw the major organic product(s) formed when hex-2-yne undergoes hydration in the presence of HgSO4 and H2SO4.
Calculate the partial pressure of SO2. Calculate the partial pressure of Cl2. Calculate the equilibrium constant at this temperature.
how would your calculated value for the molecular weight of your unknown been affected high low no effect if a small
Carbon monoxide is often used in metallurgy to remove oxygen from metal oxides and thereby give the free metal. The thermochemical equation for the reaction of CO2 with Fe2O3 is Fe2O3 (s) + 3 CO (g)
100 mL of a buffer that consists of 0.20 M NH3 and 0.20 M NH4Cl is titrated with 25 mL of 0.20 M HCl. Calculate the pH of the resulting solution given that the Kb for NH3 is 1.8 x 10-5.
Question- Obtain the expression for the separation distance corresponding to the minimum in the potential energy well described by Lennard -Jones potentials
a person ate 0.144 pound of cheese an energy intake of 1150 kj. suppose that none of the energy was stored in his body.
A 25.0 mL sample of 0.10 M sodium benzoate is titrated with 0.10 M HCl(aq). What is the pH after the addition of 32.0 mL of HCl(aq)? (Kb of C6H5CO2- = 1.6 ´ 10-10)
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