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If the rate constant for this reaction was determined to be 5.0 x 10-3 M-1s-1 at 220C and 7.5 x 10-3 M-1s-1 at 350C what is the activation energy?
Select one:
a. 23.6 kJ/mol
b. -23.6 kJ/mol
c. 200 J/mol
d. You would need to know the order of reaction to calculate Ea
Calculate the minimum concentration of Cr3+ that must be added to 0.095 M NaF in order to initiate a precipitate of chromium (III) fluoride. (For CrF3, Ksp = 6.6 x 10-11.)
Gases diffuse faster compared to liquids because of the reason that the liquid molecules A. are held together by stronger inter-molecular forces.
how many milliliters of a 0.0987 m solution of cenh4?2no3?6 will it take to titrate 26.9 ml of a 0.0745 m solution of
Explain why the boiling point of an aqueous solution that is 1.0 m in glucose (C6H12O6) is 100.51oC whereas The boiling point of an aqueous solution that is 1.0 m in NaCl is 101.02 oC .
When aqueous solutions of silver nitrate and sodium sulfide are mixed, a reaction occurs. What are the spectator ions in the reaction
What are the equilibrium concentrations of NH2OH (hydroxylamine), NH3OH+, and OH- in a 0.15 M solution of hydroxylamine (Kb=6.6*10^-9)? What is the pH of the solution
Write a balanced net ionic equation that occurs when the slightly soluble salt Mn(OH)2 (s) dissolves in water, forming aqueous ions.B. Calculate the molar solubility of Mn(OH)2 (Ksp = 2.0x10-13) in pure water.
Is ethanol(CH3OH) a bad leaving group. Also is (CH3)2N- a bad leaving group? the Nitrogen has two methyl groups and negative charge
Electromagnetic radiation has an energy of 926 J. The wavelength of this radiation is 856 nm. How many photons are required to generate this energy?
Calculate the molecule weight of the liquid If 2.31grams of the vapor of a volatile liquid is able to fill a 498-ml flask at temperature of 100 degree Celsius and pressure of 775 mm Hg? also determine the density of the vapor under these conditi..
Have a 2.5L sol'n made up of 0.05M Cl-, 0.0002M Br-, and 0.100M CrO4. you slowly add drops of a 0.5M AgNO3 sol'n. ksp for AgCl=1.8E-10, for AgBr=4E-13, and for Ag2CrO4=1.2E-12
A certain stock ammonium sulfate solution is 40.0% ammonium sulfate by mass and has a specific gravity of 1.228. What is the molarity of the solution
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