Photoelectric effect and the hydrogen spectrum
Explain what was surprising about the observations and important conslusions derived from blackbody radiation, the photoelectric effect, and the hydrogen spectrum.
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The work function of a certain metal is 1.3*10^-18 J. Upon irradation with light of a given wavelength, electrons are ejected from the metal with a velocity of 3*10^6 m/s. what is the wavelength of the radiation.
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Lindane is a toxic insecticide that causes dizziness and diarrhea in humans. Find the molecular formula for lindane given its percent composition: 24.78% C, 2.08% H, and 73.14% Cl. The approximate molar mass is 290 g/mole.
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Compare the internal rate of return for both projects. Compute the NPV for both projects, using a cost of capital of 10 percent. Which projects should be undertaken?.
0.25 mols of an unknown acid is dissolved in enough water to make 1 Liter of solution. The pH of the solution is 2.19. Determine the ka of the acid from this data.
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