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considering the given chemical equation 2H2s(g)=2H2(g)+S2(g) for the equilibrium where given Kc=9.0x10^-8 at the temperature of 700 degree Celsius the initial concentration of the three gases are.3M H2S,.3H2 and .150 S2 you just need to determine the equilibrium concentrations of all these given 3 gases?
Determine the fraction of N2 molecules traveling between 500 and 600 m/sec at room temperature
Calculate the pH at the points in the titration of 40.00 mL of 0.425 M NH3 for the reaction below. NH3(aq) + HNO3 NH4+(aq) + NO3?(aq) For NH3, Kb = 1.8x10-5. Enter your answer with 2 decimal places. Enter scientific notation as 1.23E4.
The piston is then moved in and the heat rejected by the air reversibly at constant pressure until the volume is= initial volume. compute The net heat flow and the overall change in entropy?
A bimolecular reaction is found to be 1st order with respect to both reactants. If the rate of reaction is 1.87 mol/L ·s at 25 oC, what is the reaction rate if both reactant concentrations are doubled? A) 7.48 mol/L ·s B) 46.8 mol/L ·s C) 1.87 mol..
What is the hardness of this mineral? What is the specific gravity of this mineral? show your calculations. Using all these properties, identify this mineral?
lead(II) sulfide was once used in glazing earthenware. It will react with hydrogen peroxide to form lead (ii) sulfate and water. How many grams of hydrogen peroxide are needed to react completely with 265g of lead(ii) sulfide?
Perform whatever separations and tests you think necessary to determine which ions are in fact present
The protein in a 1.285-g sample of an oat cereal is determined by the Kjeldahl procedure for organic nitrogen. The sample is digested with H2SO4, the resulting solution made basic with NaOH
the freezing point of a CaCl2 solution is -25 degrees C. a) what is the molality(m) of the CaCl2 solution? b) what is the boiling point of the CaCl2 solution
A wastewater disposal well for carrying various wastes at different times is drilled into a formation of limestone (CaCO3), and the wastewater has time to come to complete equilibrium with the calcium carbonate before leaving the formation through..
Give the empirical formula of the following compound if a sample contains 11.6g of iron and 5.01g of Oxygen
At equilibrium, 0.11 mole of CO2 was present. Calculate the equilibrium constant Kc of this reaction.
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