The densities of H2O and CH3OH at 25°C and 1 atm are 0.99705 and 0.78706 g/cm3, respective...

The densities of H2O and CH3OH at 25°C and 1 atm are 0.99705 and 0.78706 g/cm3, respectively. For solutions of these two compounds at 25°C and 1 atm, ΔmixV/n-vs.-xH2O data are:

Use the intercept method (Fig. 9.8) to find the partial molar volumes at xH2O values of (a) 0; (b) 0.4; (c) 0.6.