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Determine the activation energy in kj/mol for the following reaction: 2 N2O5(g) = 4 NO2 + O2 from the following data.25.0 degree C-----------3.7*10^-5 k(s^-1)45.0 degrees C-----------5.1*10^-4 k(s^-1)55.0 degrees C------------1.7*10^-3k(s^-1)
Determine the heats of formation or the steric energies of the exo-and endo-anhydride adducts using a molecular mechanics program. What do these energies tell you about the mechanism of the reaction
a buffer ph 3.70 was prepared by mixing 1.00 mole of formic acid and 1.00 mole of sodium formate to form an aqueous
Determine the freezing point and calculate the final temperature if initially this iron nail was at temperature of 28 degree Celsius?
In a carbonate buffer at pH 7.3; what species of carbonate form the buffer, What are the relative amounts, and does the buffer have a greater capacity to neutralize added acid or added base explain all.
How many liters of O2 are needed to react completely with 45.0L of H2S at STP? 2H2S(g) + 3O2(g) -> 2SO2(g) +2H20(g)
Calculate the volume of ammonia required to bring the pH to 3.00 and to 8.00. Kb (NH3) = 1.8 x 10^-5.
A 67.9 g mixture of the compounds sodium sulfide and potassium bromide is 40.9 % by mass sodium sulfide. The compound sodium sulfide is 41.1 % by mass sulfur. Calculate the mass (g) of sodium in the mixture.
What are the purpose/s of determine the melting point range for your product of acetaminophen? Note that there may be more than one correct answer.
gas cylinder a has a volume of 48.2l and contains n2g at 8.35 atm at 25 degrees c. gas cylinder b of unknown volume
At 25 oC the solubility of copper(II) iodate is 3.27 x 10-3 mol/L. Calculate the value of Ksp
What is the total pressure, in mmHg, of a gas mixture containing argon gas at 0.25 atm, helium gas at 350 mmHg, and nitrogen gas at 360 torr
Assuming complete dissociation of the solute, how many grams of KNO_3 must be added to 275 mL of water to produce a solution that freezes at -14.5 C? The freezing point for pure water is 0.0 C and K_f is equal to 1.86 C/m
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