Calculate the ionization energy of the He+ ion in kJ/mol (this would be the second ionization energy of He). See Problem 8.107. The Bohr formula for the energy levels of an ion consisting of a nucleus of charge Z and a single electron is RHZ2/n2.
Problem 8.107
Using the Bohr formula for the energy levels, calculate the energy required to raise the electron in a hydrogen atom from n = 1 to n = ∞. Express the result for 1 mol H atoms. Because the n = ∞ level corresponds to removal of the electron from the atom, this energy equals the ionization energy of the H atom.