Lab 1 - Shelley Hobbs Melting Point Lab Report 28 Aug, 2008...

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Shelley Hobbs Melting Point Lab Report 28 Aug, 2008 Introduction: Melting point is the point of equilibrium between solid state and liquid state of an element or a compound. The melting point can be used to identify an element or a compound. Impurities can cause melting and freezing points to broaden. When recording a melting point take note of the temperature when element starts to melt (T 1 ) and then another recording of the temperature when the element is completely melted (T 2 ). Experiment and Data obtained: A sample, approximately 2mm, of Hippuric Acid was obtained and heated at the rate of one to two degrees a minute. The sample started to show signs of melting (T 1 ) at 175 o C. The sample was completely melted (T 2 ) at 187 o C. Hippuric Acids known melting point is 190 o C. A second sample of Malonic Acid, approximately 2mm, was obtained and heated at the same rate of one to two degrees a minute. The sample first showed signs of melting (T 1 ) at 123 o C. The sample was completely melted (T
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This note was uploaded on 12/02/2010 for the course CHEM 10293 taught by Professor R.ghana during the Spring '10 term at Palo Alto College.

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Lab 1 - Shelley Hobbs Melting Point Lab Report 28 Aug, 2008...

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