Step 2: Use a graduated cylinder to measure 30.0 mL of distilled water, and transfer the water to a 25 × 200-mm test tube. Place the test tube in a test-tube clamp attached to a stand. (Note: Use the approximation that
1 mL of water has a mass of 1.0 g.)
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Step 3: Position the test tube so that the bottom of the test tube is 2 cm above the wick of the unreacted spirit burner containing the vegetable oil.
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Step 4: Use a thermometer to measure the initial temperature of water inside the test tube. Record the initial temperature of the water.
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Step 5: Light the wick of the spirit burner and use the flame to heat the bottom of the test tube for 60 seconds.
Step 6: Remove the spirit burner from underneath the test tube, and use the burner lid to extinguish the flame.
Step 7: Use the thermometer to measure the final temperature of the water. Record the temperature.
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Step 8: Measure the mass of the spirit burner, and record the value.
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