1. Carbon-carbon single bonds in organic molecules have energies about 350 kj/mol. What is the corresponding wavelength? Could UV lamps (248 nm) be used to break these bonds?
2. Garage door openers utilize free electrons released from cesium atoms. If it requires 186 kJ/mol to remove electrons from cesium, a radiation of what wavelength must be used?
3. What is the frequency, wavelength, energy (per mole) of the radiation emitted when an electron relaxes from the n=4 to the n=2 energy state in the hydrogen atom? Is it visible?
4. If the ionization energy (IE) of a helium atom is 3.94 x 10^-18 J, what is the IE of helium gas per mole?
5. A sample of sulfur gives off an emission spectrum that includes an electron transition that emits at 85.0 nm. What is the energy of this transition and is it larger than the IE of hydrogen (1312.75 kJ/mol).