Lab 1 - Densities - Introduction: The density of a solid or...

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Introduction: The density of a solid or liquid is a physical property. The density of an object or a liquid is found by dividing mass by volume. Density can be used to help us determine what an unknown object is comprised of, as densities are substance specific as well as independent of an object’s size. This experiment’s purpose is to determine the densities of an unknown liquid and an unknown solid. The densities are to be determined in a very accurate and precise fashion. Procedure: Determining the Density of an Unknown Solid: In the experiment unknown number 4 was used. Place the sample on a digital balance after tearing it. Close sliding doors on the scale to determine the mass. The volume of the solid is determined by means of water displacement. Pour distilled water into a clean, dry graduated cylinder and record the volume. Then carefully drop the sample into the cylinder taking note to not spill any liquid. Read the new level of water in the cylinder and record it. Subtract the original volume from the final volume to determine the actual volume of the solid. Repeat this procedure two more times for a total of three trials. Determining the Density of Water:
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This note was uploaded on 04/29/2008 for the course CHEM 2070 taught by Professor Chirik,p during the Fall '05 term at Cornell University (Engineering School).

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Lab 1 - Densities - Introduction: The density of a solid or...

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