Purpose
In this section you will compare the energy content of the biodiesel created in the first part of the investigation with methanol and the oil used in the biodiesel’s preparation.
Materials
• three 25 × 200-mm test tubes
• distilled water
• vegetable oil (used as a reactant in Part 1)
• methanol (the alcohol used in Part 1)
• biodiesel (produced from vegetable oil in Part 1)
• three spirit burners
• test-tube clamp and stand
• thermometer and clamp
• safety goggles, gloves, and aprons
• 50-mL graduated cylinder
• matches
Procedure
Step 1: Use an electronic balance to measure the mass of three spirit burners containing the following three fuels: vegetable oil, methanol, and biodiesel (prepared in Part 1). Record the mass of each burner in a data table of your own construction.
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