... filled with deionized water, We is the weight of the dry pycnometer, and do is the density of pure water at 25 degrees Celsius. The calculation of the density of the solution is found by: D= Wsolution V (Equation 2) The calculation for the molality of the solution is found by: m= 1 (d /M)-(M2/1000mol/kg) (Equation 3) where d is the density of the solution and M is the molarity of the solution, and M2 is the solute molar mass. The calculation for the apparent molar volume is found using the equation: ? = 1 M2- 1000mol/kg W-Wo d M Wo-We (Equation 4). The partial molar volume of solvent and solute is then calculated using equations: ? Solvent V1=V1^0 - m m^1/2 d? 55.51 2 dm^1/2 Solute V2 =?^0+3m^1/2 d? 2 dm^1/2 (Equations 5&6). There are three types of density of powder measurement made, each one is given the symbol ? and a corresponding subscript. The First being the ...

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