Molar volume, viscosity and conductance studies of copper sulphate in some multicomponent solutions (CuSO4.5H2O-dextrose-NaCI-H2O)

Chemistry Department, Himachal Pradesh University. Shimla-171 005, Himachal Pradesh. India Manuscript received 25 April 2005, revised 19 October 2005. accepted 26 October 2005 Molar volume, viscosity and molar conductance of copper sulphate in water, 0.1 M aqueous sodium chloride and 5-15 wt% dextrose in 0.1 M sodium chloride solutions have been evaluated from density, viscosity and conductance data respectively at temperature 303, 308, 313 and 318 K. The strong solute-solvent interactions for copper sulphate in various composition,s of dextrose in 0.1 M aqueous sodium chloride have been inferred from Φ\(\mathring{\vee}\):, B-coefficient of Jones-Dole equation and \(\mathring{\wedge}\)° values. The structure making/breaking behaviour of copper sulphate from molar volume data has been inferred from the sign of [∂2Φºv/∂T2]p and it has been found that copper sulphate behaves as structure breaker. The positive B-coefficient of Jones-Dole equation have been obtained from viscosity data which is due to structure breaking behaviour of copper sulphate in water and 5-15 wt% dextrose in 0.1 M NaCI solutions. The structure breaking behaviour of copper sulphate has also been obtained from Walden product studies