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This experiment is to measure and calculate the partial molar volumes of sodium chloride solutions as a function of concentration from densities measured with a pycnometer, as well as to calculate three types of density measurements of CaCO3, a powder.
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Introduction The purpose of this experiment is to measure and calculate the partial molar volumes of sodium chloride solutions as a function of concentration from densities measured with a pycnometer, as well as to calculate three types of density measurements of CaCO3, a powder. The partial molar volume is defined as, the increase in the volume of an infinite amount of solution (or any amount so large that insignificant concentration change will result.), when one mole of component i is added. The partial molar volume is not necessarily equal to the volume of one mole of pure i. This quantity is of interest because of its thermodynamic relationships with other partial molar quantities such as chemical potential (Gibbs free energy). The deviations from values expected for ideal solutions of partial molar volumes are also of interest in connection with the theory of solutions especially as applied to binary...
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