Equation 1
The notations which are used in Equation 1 are as follows: mi: Molality of solute i,
F: Density of the binary solution, ρ_w: Density of water.
In general,
In order to yield apparent molal volumes at infinite dilutionV_∅^∞, the apparent molar volumes V_∅ of aqueous electrolyte solutions are extrapolated to zero concentration employing the Conway et al. [11, 16] equation:
Equation 2 …show more content…
To obtain the values for V_∅^∞ given in Table 6, they were fitted to equation 7. Note that prior measurements of density on poly(ethylene glycol) + water should perform to calculate the values of V_∅^∞ for the polymer. Table 3 has shown these empirical values for different molalities of poly(ethylene glycol). Some of the researchers 11, 18, 20 have proposed that the dependency of〖 V〗_∅ on the molality of the polymer is a linear function specified