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Hydrogen iodide decomposes according to the equation:2HI(g) H2(g) + I2(g), Kc = 0.0156 at 400ºC
A 0.660 mol sample of HI was injected into a 2.00 L reaction vessel held at 400ºC.
Calculate the concentration of H2 equilibrium.
Ammonia is produced by reacting nitrogen gas and hydrogen gas. N2(g) + 3H2(g) 2NH3(g) + 92kJ. for each of the following changes at equilibrium, indicate whether the equilibrium shifts toward product or reactants or does not shift
consider the following reaction. h2og cog h2g co2g in a particular experiment 1.0 mol h2og and 1.0 mol cog are put
using anbsp sample xenon gas that has a volume of 18.5 litres at 1.5 atm. what is the new volume if the pressure is
Calculate the minimum amount of dichloromethnae required to extract 99% of the 60 mg of caffeine dissolved in 50mL of tea in one extraction.
A cylinder fitted with a piston contains 3.00 moles of He gas (ideal!) at P = 1 bar and is held in a large constant-temperature bath at 400 K. The pressure is reversibly increased to 5.00 bar.
Using phosphoric acid, what concentrations are needed to give a pH 8.10 solution with an ionic strength of 0.100 M?
For which of the following transitions would a hydrogen atom absorb a photon with the longest wavelength? a) n=1 to n=2 b)n=2 to n=4 c) n=5 to n=1 d) n=7 to n=6 e) n=5 to n=6
When filled withan unknown gas at STP, the container mass is 37.062g. Calculate themolecular weight of the unknown gas, and then state its probableidentity.
A fixed quantity of gas at 24 C exhibits a pressure of 745 torr and occupies a volume of 4.40 L. Use Boyle's law to calculate the volume the gas will occupy if the pressure is increased to 1.88 atm while the temperature is held constant.
A rolling axle, 1.50 m long, is pushed along horizontal rails at a constant speed v=3.00 m/s. A resistor R=0.400Ω is connected to the rails at points a and b, directly opposite from each other.
The surrounding solution has a mass of 1298 and its temperature is changed by 12.7 . If the specific heat is assumed to be 4.18 , calculate the change in heat for the surroundings.
Why should the flask be immersed in boiling water as much aspossible? What effect will it have in determining the molecularweight? Explain.
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