Attitudinal Change and Student Relevance in Service Courses As a result of this soapmaking experiment: I see the importance of “stoichiometry” or “things reacting in particular ratios.” I see how the idea of pH or acidity shows up in everyday life. I better appreciate that chemistry affects me and human health directly. Agreement before the experiment Increase after the experiment Target population for next implementation soap making process and chemistry Ç√ Ç√ Ç√ Ç√ Stoichiometry, acid/base or pH, and chemistry generally were key components of this multi-week, end-of-semester experiment.