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If a temperature increase from 22.0 degrees Celsius to 33.0 degrees Celsius triples the rate constant for a reaction, what is the value of the activation barrier for the reaction?
The enthalpy of hydration associated with anhydrous LiI forming LiI?2H2O is -45.53 kJ/mol. The enthalpy of solution for LiI?2H2O is -14.77 kJ/mol. What is the enthalpy of solution for LiI
A gas at 1 atm and 125degC is expanded from a volume of 150mL to a volume of 4L. The pressure of the gas after expansion is 500 torr. What is the temperature of the expanded gas
At low temperatures, xenon freezes to a solid having a density of 5.653 g/cm3. Below 84 K, argon also freezes to a solid that has a similar structure but different volume and mass.
draw the structure of the major organic product in the following hydroboration-oxidation reaction. sia siamyl
Draw a structural formula of the R configuration of the compound shown below. Illustrate the stereochemistry about the chiral carbon using the "single up" (solid wedge) and "single down" (hashed-line wedge) bond tools. Show explicitly the bonds to..
You have a balloon that is not permeable to gas molecules. The balloon is spherical and has a circumference of 3.141592654 m when it is filled with a gas at 20 EC and 1.0000 atm pressure.
The other criterion is very basic and relates to whether simple or fractional is selected
What is the amount of energy packaged in a photon with a wavelength of 310 nm. Calculate the frequency of EM radiation with a wavelength of 1.2 x 10-7 m
Calculate the minimum amount of dichloromethnae required to extract 99% of the 60 mg of caffeine dissolved in 50mL of tea in one extraction.
I- is oxidized by MnO4- in basic solution to yield I2 and MnO2. The coefficient on H2O in the balanced redox reaction will be
Calcium hydride reacts with water to give gaseous hydrogen and calcium hydroxide
what is the solubilty of O2 at an elevation of 12, 000 ft where the atmospheric pressure is 0.657 atm? Assume the temperature is 25 degrees celsius, and that the mole fraction of O2 in air is 0.209 at both 12, 000 ft and at sea level.
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