143A Exprmnt

143A Exprmnt - Name: _ Date: _01-06-2011_ TA signature: _...

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Name: ______________ Date: __01-06-2011 __ TA signature: _________________________ Experiment# : __0 _________ Chemicals to be Used Today: water methanol hexane Unknown compound #1 Chosen organic compound Equipment to be Used Today: Beaker Ehrlenmeyer flask 10 mL graduated cylinder 1 mL latex bulb 5 3/4 inch Pasteur pipette Balance Cotton Melting point apparatus Steps to Follow for this Part of the Experiment: Part A: 1. Record the temperature of 50-100 mL of water in a beaker once the temperature has stabilized. 2. Record the mass of an empty, clean and dry 10 mL graduated cylinder. 3. Using a 5 3/4 inch Pasteur pipette expel 50 drops of water into a graduated cylinder. Record the number of drops used, the mass and volume of the water. Part B: 1. Prepare the two types of filter pipettes. Extract a small wad of cotton and place in the pipettes in their respective positions, prodding with metal wire as necessary. 2.
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143A Exprmnt - Name: _ Date: _01-06-2011_ TA signature: _...

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