At high temperatures, dinitrogen tetroxide gas decomposes to nitrogen dioxide gas.  At 500 oC, a sealed vessel containing some dinitrogen tetroxide gas was allowed to reach equilibrium.  At equilibrium, the mixture contained 3.21 M dinitrogen tetroxide gas.  Calculate the equilibrium concentration of nitrogen dioxide if KC at this temperature is 0.778.

A normal boiling point of Cd(l) is 1038K. At this temperature AHyar is 23,900(J/mol).“ (a) In 2 atm, find boiling point of Cde

Mn in groundwaterA ground water has the following conditions:{Mn2+ (aq)} = 1.0x10 -5pH = 7.0 (i.e., {H+ } = 1.0x10-7)Saturated with oxygen from the atmosphere: {O 2(aq)} = 2.63x10 -4T = 25 °C(a) Write the balanced equation for oxidation of reduced manganese,Mn2+ (aq), by dissolved oxygen (O 2(aq)) to generate MnO 2(s)(manganese dioxide) or MnOOH(s) (manganite), respectively.(b) Determine whether each of the above two reactions isthermodynamically favorable in the ground water. Which phase ofthe manganese oxide is more stable in the ground water?(c) If groundwater is at 5 oC, does oxidation of Mn 2+ (aq) by dissolvedoxygen to generate MnO 2(s) become more or less favorable?Calculate the saturated {Mn 2+ (aq)} assuming the water pH remainsat 7.0 and the dissolved oxygen concentration is 3.73x10 -4 M.   25C and 1 atm   Please be as detailed as possible. I want to be able to replicate. Thank you so much. :)

A typical sample of air contains 21.0% O2 by volume. For any gas, the volume the gas occupies is directly proportional to the number of moles of gas at a given temperature and pressure. How many moles of oxygen are present in 18.75  moles of air?

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Methanol (CH3OH) has been suggested as a fuel to replace gasoline. Write a balanced equation for the combustion of methanol, find ΔH °rxn, and determine the mass of carbon dioxide emitted per kJ of heat produced. Use the information from the previous exercise to calculate the same quantity for octane, C8H18. How does methanol compare to octane with respect toglobal warming?

EVALUATION OF MASS DIFFUSIVITY Find the diffusivity of CO, in N2 at 30°C and 740 mm Hg. Find the diffusivity of benzene vapor in air at 600C and 120 kPa Find the diffusivity of isopropyl alcohol in liquid water at 45°C

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The normal boiling temperature of benzene is 353.24 K, and the vapor pressure of liquid benzene is 1.19 X 104 Pa at 20.0°C. The enthalpy of fusion is 9.95 kJ mol-¹, and the vapor pressure of solid benzene is 137 Pa at -44.3°C. Calculate the following: a. AH vaporization b. AS vaporization c. Triple point temperature and pressure