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At a high temp. Equal concentrations of 0.200 mol/L of H_2 (g) and I_2 (g) are initially present in a flask. The H_2 and I_2 react according to the balanced equation
H_2 (g) + I_2(g) ----- 2 HI(g)
Explain when equilibrium is reached, the concentration of H_2 has decreased to 0.046 mol/L. what is the equilibrium constant, Kc, for the reaction?
the Redlich-Kwong equation to calculate the value of the pressure of one mole of ethane at 400.0K confined to a volume of 83.26 cm^3. The experimental value is 400 bar.
A 0.050 M H2S solution contains 0.29 M NiCl2 and 0.35 M Hg(NO3)2. What pH is required to precipitate the maximum amount of HgS but none of the NiS
How many simabonds are there in a C60 molecule? 2. Which has stronger carbon-carbon bonds: graphite, diamond or C60? Please explain
Sunlight causes the following reaction to take place in the atmosphere: NO2(g) NO(g) + O(g). Calculate the standard enthalpy of the reaction from the following information and from additional information in Appendix 2A
what is the rate law? b) calculate the value of the rate constant c)calculate the initial rate for an experiment when both I- and OCl- are initially present at 0.15 mol/L
Suppose the pH of the water is 4.67 and that the concentration of iron(II) in the water is 5.17x 10-5 M, what is the potential of the corrosion reaction under the above conditions at 298 K?
Beta sheets are a type of secondary structure in proteins. A segment of a single chain in an antiparallel. sheet has a length of 291 Å . How many residues are in this segment
Water has a specific heat of 4.184 J/g x Celsius, weighs 130.00 g, and goes from 25 to 28 degrees Celsius when a metal is placed in the water. The metal weighs 45.00 g, and the temperature changes from 23 to 89 degrees Celsius. Calculate the speci..
Draw a mechanism for the dehydration of cyclohexanol catalyzed by phosphoric acid.
The ksp for Al(OH)3 is 1.9*10^-33. what is the pH of a sauturated solution of Al(OH)3. ignore any hydrolysis
what mass of water must be removed from the air each time the volume of air in the room is cycled through the air conditioner? The vapor pressure from water at 30 C is 31.8 torr.
Ascorbic acid (Vitamin C, present in apples) is burned in the presence of excess oxygen, to yield 5.80 mg CO2 and 1.58 mg H2O. Knowing that ascorbic acid contains only C, H, and O, and the mass of the sample used in the combustion was 3.87 mg
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