№ files_lp_3_process_7_061259
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Laboratory instruction outlining the procedure for measuring temperature changes of lauric acid during controlled heating and cooling to construct phase change curves and analyze kinetic and potential energy variations.
Subject: Chemistry
Topic: Phase Changes and Temperature Variation
Type of Document: Laboratory Experiment Instruction
Educational Level: Secondary School Laboratory
Substance Studied: Lauric Acid (C12H24O2)
Purpose: Study the effects of heating and cooling a pure substance through a phase change and determine its freezing and melting points
Equipment: Test tube (18 x 150 mm), cork, 250 ml beaker, thermometer, ring stand, iron ring, test tube rack, wire gauze, test tube clamp, lab burner, stopwatch, blue pencil, red pencil, lab apron, safety goggles
Materials: Lauric acid (C12H24O2), water
Temperature Range: Approximately 25°C to 70°C
Phases Observed: Solid and Liquid
Measured Variables: Time and Temperature
Data Representation: Heating curve and cooling curve graph
Safety Requirements: Use of safety goggles and lab apron; caution with open flame and mercury thermometer
Price: 8 / 10 USD
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Topics: Lauric Curves Cooling