An alternative theoretical formulation for determining oscillator strength using a non-spherical molecular cavity is developed and this model correlated with experimental measurements made using non-resonant scattering of a He-Ne laser beam incident upon select aqueous ionic concentrations of NaCl. The light beam was transmitted through each sample and measurements made, at room temperature, on the transmitted light to determine the shape factor. The shape factor was estimated to be 0.30 from the results of this experiment. The nature of the ion-solvent interaction was obtained from the dielectric decrement.