For Physical Chemistry Donald A. Mcquarrie ((link)) - Mathematics

If you own McQuarrie’s main P-Chem textbook, this is its essential companion. Even as a standalone, it is perhaps the most practical math reference

The end-of-chapter problems are the star. They aren’t just “compute the derivative.” Instead, you’ll solve for the vibrational frequency of a diatomic molecule, normalize a wavefunction, or derive the Maxwell-Boltzmann distribution. Working these problems builds genuine physical intuition. mathematics for physical chemistry donald a. mcquarrie