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1. The energy for one state of the H atom is -2.18 *10 ^18 J. What frequency (Hz) of light would need to be absorbed to reach a state with an energy of -8.72 X 10^ -20 J? Express answer in scientific notation.
2. The energy levels the electron can occupy in the Li2+ ion can be calculated using the energy level equation. A Li2+ ion emitted a photon with a frequency of 2.78 × 1016 Hz to reach an energy level with n=1. What was the value of n for its initial energy level?
3. The energy required to split apart dichlorine according to the equation is 3.99 × 10-19 J/molecule.
Cl2(g) ? 2Cl(g)
Calculate the wavelength (m) of the photon that can dissociate dichlorine.
Rework your solution from the beginning and check each step carefully.
the given data of pyroxene analysis is given w. sio248.90 tio2.12 al2o33.86 fe2o34.65 cr2o30 feo25.35 mno.51 mgo6.87
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