This directed case study provides an opportunity to apply stoichiometry to combustion reactions of commonly used explosive materials. Initially, students apply modified Kistiakowsky-Wilson (K-W) rules, developed during World War II, to predict the reaction products from a given starting material. From the derived balanced equation, stoichiometric equivalents of products can be used to apply the ideal gas law (IGL) to predict measures of pressure, volume, and temperature. The IGL is a great exercise in stoichiometry and requires conversion of units in similar terms, common to the ideal gas constant. Although the case was written for the introductory chemistry classroom, it would be suitable for students in analytical chemistry courses who need additional practice in stoichiometry.