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The following reaction was performed in a sealed vessel at 716°C : H2(g)+I2(g)?2HI(g) Initially, only H2 and I2 were present at concentrations of [H2]=3.40M and [I2]=2.30M. The equilibrium concentration of I2 is 0.0900M . What is the equilibrium constant, Kc, for the reaction at this temperature? CO(g)+Cl2(g)?COCl2(g) Carbon monoxide and chlorine gas are allowed to react in a sealed vessel at 475°C . At equilibrium, the concentrations were measured and the following results obtained: Gas Partial Pressure (atm) CO 0.900 Cl2 1.30 COCl2 0.240 What is the equilibrium constant, Kp, of this reaction? Express your answer numerically. Kp =
A mixture of nitrogen and liquid ethanol in a closed constant-volume container has a partial pressure of 101 mm Hg of nitrogen and 66.2 mmHg ethanol at 27 C (300 K)
A gas mixture containing oxygen, nitrogen, and neon exerts a total pressure of 1.20 atm. If helium added to the mixture increases the pressure to 1.50 atm, what is the partial pressure (atm) of the helium
Determine the molarity of a saturated aqueous solution of NaI formed as 25degree celsius assuming that the added NaI does not add significantly to the volume of the water?
When the following equation is balanced using the smallest possible integers, what is the number in front of the substance in bold type. Na2S2O3 + I2 ? NaI + Na2S4O6
What is the minimum number of liters of air that must pass over a sample of the compound at 25oC to vaporize 1.0 mg of it? Hint: You know the Vapor Pressure from question "a" above and you are given the temperature and mass.
If a drop of water clings to the outside of the foil cap and is not removed, how would the experimentally determined molecular weight be affected? Too high or too low?
407 mL of H2 gas is collected over water at 785.3mm Hg and 23.5 degrees C. What would be the volume of this dry gas at standard conditions?
a photon of wavelength 40.0nm is used to eject an electron with the energy 22.3eV from a molecule.calculate the ionization energy of the molecule and tha associated wavelength of the elctron..
A heat lamp produces 20.0 watts of power at a wavelength of 5.7?m .How many photons are emitted per second?
Calculate the maximum number of moles and grams of H2S that can form when 152 g aluminum sulfide reacts with 147 g water.
If the hydrolysis to the diacid is not complete, how could you separate the desired diacid from the unhydrolyzed anhydride by extraction. Discuss the chemistry involved.
Draw the lowest energy conformation of 3-ethyl-2,4,4-trimethylheptane, depicting the C3-C4 bond on a sawhorse.
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