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2.79 g of N2O reacts completely with an equimolar amount of NO2 to form elemental nitrogen and oxygen. How much N2 is formed in this process?
What percentage of the Sr-90 that was formed in the detonation of the first fission bombs in August 1945 is still present in the environment in August 2032?
Experiments show that the molecular weight of acetic acid in the vapor state (just above its boiling point) is approximately 120. Explain the discrepancy
How do you determine the bond order, bond length, and bond energy of a C-O bond in the carbonate ion
A liquid unknown was found to be insoluble in water and soluble in cyclohexane and alcohol; the unknown was found to have a boiling point of 58 Celsius at 670 mm Hg. what is the substance
Calculate the pH of a buffer solution that is 0.423 M in H3BO3 and 0.199 M in NaH2BO3. The Ka of H3BO3 is 5.8e-10. a) The pH of this solution
A 0.24ml sample of a weak acid with an unknown pKa was combined with 12.0ml of a 3.20M KOH and the resulting was diluted to 1.500L. The measured pH of the solution was 3.75. What is the pKa of the weak acid
the addition of aqueous ammonia to the cathode compartment of the cell described below reduces the cell potential.
What wold you prodict for the relative reactivity of 4-trifluoromehylbenzaldehyde in this aldol condensation reaction.
derive the irreducible representations for the normal vibrations of XeF4 and determine which are IR active, which are Raman active
Find the enthalpy delta H of the formation of liquid water in the standard state. g) Find the value U of the molar internal energy of water at standard conditions.
Label each of the following reactions as exothermic or endothermic ("exo" or "endo"), and according to whether work is done on or by the system, or no work is done at all ("on", "by" or "none")
For many years drinking water has been cooled in hot climates by evaporating it from the surfaces of canvas bags or porous clay pots. How many grams of water can be cooled from 40.°C to 19°C
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