"Use" it yes, "understand" it? Less so, haha. Honestly with the whole quantum physics area I've kind of drawn a huge blank, it's just so much to get your head around and with no background in studying physics it's proving to be quite a challenge .-. How'd you manage? :o
The module I'm doing covers state/phase chemistry, quantum physics, rates, equilibria and thermodynamics - I'd say I understand probably one of those topics enough to answer questions decently on and the exam is tomorrow? XD When's yours!