Astorage tank of water is contaminated with hexane. the hexane is measured to be 65 mg/l in the aqueous phase. the total pressure of the gas in the headspace (above the liquid) is 1.2 atm. calculate the concentration of hexane in the gas phase, in units of atm. then find the % (or fraction) of the gas that is hexane

Why do the strengths of london (dispersion) forces generally increase with increasing molecular size? choose one: a. heavier atoms have stronger attractions for each other than lighter atoms. b. dispersion forces are all equal in magnitude; there is no size dependence. c. dispersion forces arise from the attraction between the nuclei of atoms, and larger molecules have larger nuclei. d. dispersion forces arise from dipoles caused by the electron distribution being distorted. larger molecules have more electrons and, therefore, more distortions and a bigger force. e. dispersion forces depend on distance. larger molecules are farther apart and so the forces are smaller.