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Consider the reaction:
1/2 N2(g) + O2(g) <-----> NO2(g)
Write the equilibrium constant for this reaction in terms of the equilibrium constants, Ka and Kb, for reactions a and b below:
a.) N2O4(g) <----> 2NO2(g) Ka
b.) N2(g) + 2 O2(g) <------> N2O4(g) Kb
K =________
Calculating standard enthalpy change, heat, and mass of a reaction, Methanol (CH3OH) is used as fuel in race cars. Calculate the standard enthalpy change for the reaction, assuming H2O(g) as a product.
Problem- A) What is the main difference between the isotherms above and d below the critical temperature Tc? Which equation can describe their behavior perfectly and which can describe them only approximately? Why?
Calculate the molarity of S2O32- if 3.0 mL 0.10 M K2S2O8, 2.0 mL 0.10 M K2SO4, 1.0 mL 2% starch, 2.0 mL 0.010 M Na2S2O3, and 5.0 mL 0.20 M KI are mixed.
there are 3 main light components in turbid light mediaballistic photons snake photons and diffuse component. why
1 bar can support 750.06 mmHG. What is the height of isopropyl iodide that 1 bar can support. Densities: Hg 13.6g/mL; isopropyl iodide 1.7 h/mL
measured in a 1.00-cm pathlength cuvette, has an absorbance of 0.321 while the reagent blank in the same cuvette has an absorbance of 0.014. What would be the absorbance reading of these two solutions if measured in a cuvette with 5.00 cm pathleng..
If one ignores the thermal expansion of glass and any weighing errors due to the buoyancy effect, does the volume of water actually delivered by a volumetric pipet differ as a function of the temperature of water used in the calibration
A mixture of pentane and hexane has a vapor pressure of 258 torr. The standard vapor pressure of pentane is 425 torr. What is the mole fraction of pentane?
A compound is known to contain 51.27% carbon and 27.30% oxygen by mass. Each molecule contains two atoms of oxygen. What is the molar mass of this substance
Calculate the wavelength of an 81kg athlete running a 4 minute mile. calculate in nanometers.
How would you prepare 250mL of a buffer having a pH of 3.60 using 0.500M NaOH and 0.500M of HNO2. Would you calculate the molarities of the conjugate acid and base pair and then somehow get the volumes from that
A student titrated a sample containing .5671 grams of Oxalic Acid with .3150 N of NaOH. The end point was reached after the addition of 20.12 mL of NaOH. Calculate the experimental equivalent weight for oxalic acid.
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