mobile adsorption, 941 mobile phase in chromatography , 941 mobile-phase velocity, in chromatography , 942 mobility, , 942 mobility (general), 942 mobility in aerosol physics , 942 Möbius aromaticity, 943 mode, 943 mode-locked laser, 943 model network, 943 moderation in nuclear chemistry , 944 moderator, 944 modified active solid in chromatography , 944 modified Arrhenius equation, 944 modified sample, 945 modifier in solvent extraction , 945 modulus of elasticity, , 945