Abstract
Conductance data for lithium and cesium bromides in formamide‐water mixtures (; ) are reported at 25°C in the concentration range 0.01–0.10N. Solvent properties like density, viscosity, and dielectric constant are also reported at the same temperature. The conductance data have been analyzed by the Fuoss (1978) equation. Viscosities of the solvent mixtures show a slight negative deviation from ideal behavior without showing any maximum or minimum in the solvent composition‐viscosity curve, indicating overall slightly less structured solvent mixtures than that expected from ideal behavior. The limiting equivalent conductance for each of the salts decreases with the increase of formamide content in the solvent mixtures over the whole range of the solvent composition, but the variation is not such that it can give a constant value for the Walden product. In any given solvent mixture . Both electrolytes were found to be practically completely ionized in all solvent mixtures studied. Although, a wide range of values of the distance parameter was found to be acceptable for both the salts in each solvent mixture for fit to , best values of derived for were found to be almost constant in all solvent mixtures while no systematic trend was observed for .
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