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A stellar object is emitting radiation at 3.75 mm. If the detector is capturing 3.3*10^8 protons per second at this wavelength, what is the total energy of the photons detected in one hour
The pressure is changed to 8.75 atm and the gas is cooled to 15 C. Calculate the new volume of the gas using the ideal gas equation.
Using given data, calculate the change in Gibbs free energy for each of the following reactions. In each case indicate whether the reaction is spontaneous at 298 K
At what Kelvin temperature will the reaction proceed 3.50 times faster than it did at 351 K?
Detailed analysis of the 369 and 295 cm-1 bands show them to arise from totally symmetric modes. Show that the Raman spectrum is consistent with a trigonal-bipyrimidal geometry.
The theoretical energy consumption per kg of aluminum and the current required for the production of 1 metric ton of aluminum per day
what is the final temperature of the mixed solution? The heat of neutralization is -56.2 kJ/mol. Assume the density and specific heat of the solutions are the same as those for water.
What is the energy in joules released by the fission of a single uranium-235 atom?
Heat energy is added to a 352 g block of nickel, and the temperature increases from 21 degrees C to 53 degrees C. If the same amount of heat was added to the same mass of water at the same temperature, what would the water's final temperature be
Suppose that N2 gas may be described as van der waals gas. This gas (n=1.25 mol) is expanded isothermally and reversibly from a volume of 1 liter to 10 liters at 300K
A radioactive sample contains 2.50g of an isotope with a half-life of 3.8 days. How much of the isotope in grams will remain after 14.2 days
A solution is prepared by dissolving 55.1 g of KCl in approximately 75 mL of water and then adding water to a final volume of 125 mL. What is the molarity of KCl(aq) in this solution?
In the column chromatography portion of an experiment, a student uses different solvents or solvent mixtures to elute the column for separation of your product mixture.
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