1. The problem statement, all variables and given/known data 2. Relevant equations Uploaded as a picture as it's pretty hard to type out 3. The attempt at a solution So to normalise a wavefunction it has to equal 1 when squared. A is the normalisation factor so we have: A.x2e-x/2a0.x2e-x/2a0 = 1 ∫ψ*ψdx = A2∫x4e-axdx = 1 Then I've been given the integral of this between 0 and ∞: ∫xne-axdx = n!/an+1 ∫ψ*ψdx = A2.4!/a5 = A2.24/a5 A = √a5/24 Have I done this right? I don't even know where to start with (ii). Any help would be greatly appreciated!!