Difference in energy levels in the atom
Question: The spectrum of mercury contains a line at 435.8 nm in the blue region of visible light. What is the difference in energy levels in the atom that gives rise to this spectral line? Give the answer in both J and eV.
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For a particular reaction, ΔH° is 20.1 kJ and ?S is 45.9 J/K. Assuming these values change very little with temperature, over what temperature range is the reaction spontaneous in the forward direction?
The mixture freezes at 62.7 degrees celcius. The freezing point of pure stearic acid is 69.4 degrees celcius. What is the freeezing point constant of stearic acid?
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What is the standard change in Gibbs free energy of this reaction at 25 degrees Celsius.
The spectrum of mercury contains a line at 435.8 nm in the blue region of visible light. What is the difference in energy levels in the atom that gives rise to this spectral line? Give the answer in both J and eV.
Company's Bonds Payable has a balance of $1,000,000 and Discount on Bonds Payable has a balance of $12,500.
A molecule having a molar mass of 132.8 g/mol crystallizes to a cubic solid where each edge of the unit cell is 686.0 pm. Each unit cell contains 2 molecules. What is the bulk density of the crystal?
How many minutes does it take for the concentration of the reactant,(A) , to drop to 6.25% of the original concentration?
Depict the derivation of Bragg's law with your own drawings and commentary. What does the "n" represent in the equation? Describe what is happening in terms of wave interference if n=1/2.
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An old, low quality, but free and interesting documentary: Zimbardo- Stanford Prison Experiment Documentary.