lab 1 chem 111

lab 1 chem 111 - Introduction: Volatility, viscosity, and...

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Introduction: Volatility, viscosity, and solubility are all very important properties in determining intermolecular forces present in molecules. The parts performed in this experiment were very important in determining what intermolecular forces were present in many different chemical compounds. The volatilities of samples were tested of six different compounds in part A. In part B, the viscosities of materials were tested by adding three different compounds to test tubes and swirling them around. These compounds were also heated up and the viscosity was tested. In part C, the solubility of different liquids was tested by seeing if the liquid was miscible. In part D, solids were mixed with liquids to test to see if the liquids were soluble. Observations and Results: Part A 1a. n-decane: C 10 H 22 – slowest evaporation rate n-heptane: C 7 H 16 – medium evaporation rate n-pentane: C 5 H 12 – fastest evaporation rate 1b. Methanol: CH 3 OH – fastest evaporation rate Ethanol: C 2 H 5 OH – medium evaporation rate n-butanol: C 4 H 10 O – slowest evaporation rate 2. The most volatile substance was n-pentane and the least volatile substance was the de- ionized water. *Dispersion forces are present in these molecules.
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This note was uploaded on 04/07/2008 for the course CHEM 111 taught by Professor Loo during the Spring '07 term at Towson.

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lab 1 chem 111 - Introduction: Volatility, viscosity, and...

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