1. The problem statement, all variables and given/known data The Hydroxl Ion (OH-) may be considered as a bound state of O2- and a proton. Treating the O2- ion as a nucleus of charge +8 with the electrons homogeneously distributed in a sphere of radius b, determine approximately the position of the proton, the hydroxl binding energy and its vibrational frequency. 2. Relevant equations Vibrational energies E=(n + 1/2)hbarω n = 0, 1, 2..... E = hv=hc/λ where v is the vibrational frequency 3. The attempt at a solution This was a test question and I got 1/20 points on it lol. So my attempt was pretty futile. There may be different methods you can use to solve this problem. One of my questions is what exactly the binding energy is. I thought it would just be the ground state vibrational energy but I could be wrong.