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Determine the end (final) value of n in a hydrogen atom transition, if the electron starts in n = 1 and the atom absorbs a photon of light with an energy of 2.044 x 10-18 J.
Compare the rms speeds. Compare the average kinetic energy. -Consider equimolar samples of the same ideal gas at the same temperature, but different volumes. Sample A has a larger volume than Sample B
Calcium concentrations in solutions may be determined by a complex-forming reaction with EDTA. The reaction takes place between Ca2+ and EDTA4- with a formation constant of 4.5 x1010.
15.0 moles of gas are in a 6.00 L tank at 24.1 degrees C. Calculate the difference in pressure between methane and an ideal gas under these conditions. The van der Waals constantsfor methane are a = 2.300 L^2 atm/ mol^2 and b = 0.0430 L/mol
detailed reaction mechanism for the acid-catalyzed hydrolysis of lactose to its component monosaccharides
If Hg and 1.50g O2 are obtained from heating 56.0g HgO, what is the masspercent yield of O2 ? Hint work out the stoichiometry of the reaction first.
A power company burns approximately 474 tons of coal per day to produce electricity. If the sulfur content of the coal is 1.30% by weight.
The crystal lattice energy of an ionic solid, XY, -1,331.0 kJ/mol. The total hydration energy for both X+ and Y- ions is -954.5 kJ. Determine the Enthalpy of solution of the solid.
A (n) 8.54 - mol sample of carbon monoxide was stored in a 30.0-l container at 49.9 c . What is the pressure of the carbon monixide in the container.
Find the de Broglie wavelength of an electron whose speed is 2 x 10^7 m/s. How significant are the wave properties of such an electron likely
A flask contains 0.180 of liquid bromine,. Determine the number of bromine molecules present in the flask.
using a chemical test or tests, how could you distinguish between 3-pentanone and 4-penten-1-ol?
Silver and Gold are exceptions to the rule for transition metals and charge. What is the charge of gold and silver. What color will potassium burn in a flame
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