FR expt 2 partial molar volume

FR expt 2 partial molar volume - Mapa Institute of...

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M170L – A31 nt info: uary, 2011 niqued@yahoo.com rtial molar volume, ethanol, water, density, pycnometer Mapúa Institute of Technology School of Chemical Engineering, Chemistry, Biological Engineering and Materials Science Engineering Measurement of Density and  Determination of Partial Molar Volume of  Ethanol-Water System Austria, Meynard 1 Baniqued, Paul Dominick E. 2 1 Professor, School of Chemical Engineering, Chemistry, Biological Engineering and Materials Science Engineering, Mapua Institute of Technology; 2 Student, CHM170/A31 Molecular Biology and Biotechnology Laboratory 2, Biological Engineering and Chemistry, Mapua Institute of Technology ABSTRACT The partial molar volume is a measurement of the volume per mole of a substance present in a mixture. When mixtures are formed, the individual characteristics of each participating species disappear as they now contribute to the identity of the mixture. In this experiment, the partial molar volume of water and ethanol at different concentrations were measured using the density measured by a pycnometer. The instrument is filled and weighed in and the mass of the mixture can be obtained by displacement method. The graph of the change in molar volume of the mixture Δvmix vs. x1 shows a parabolic curve. The partial molar volume of water increases as the partial molar volume of ethanol approaches zero. INTRODUCTION Volume is affected when two homogeneous mixture are prepared and is explained by the intermolecular forces experienced by the participating species. When a substance is mixed with other substances, it loses its identity as a pure substance but it contributes to the
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This note was uploaded on 04/27/2011 for the course CHM 170 taught by Professor Ng during the Spring '11 term at Mapúa Institute of Technology.

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FR expt 2 partial molar volume - Mapa Institute of...

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