Results are reported of experiments performed to measure the fundamental kinetic parameters of time-dependent electron density, time-dependent xenon-excited-state density, and burnup of HCl. The electron density was measured using quadrature interferometry, xenon-excited states were measured using hook interferometry, and the total amount of HCl depleted during the e-beam pulse was measured using IR absorption on the first vibrational overtone. Improvements to and comparisons with a computer model of XeCl are presented. The overall trend of the data and the inability of the upgraded model to predict certain observed behaviors indicate that HCl is being destroyed faster than simple electron dissociative attachment can account for.