Chemistry I Core Labs

Links:

Purpose:
To make and interpret a graph which is characteristic of the melting of a pure substance.

Summary:
A selected pure substance is gradually heated until it has completely melted. Time/temperature data reflect a leveling off of temperature during melting.

Objectives Links:
1. C: Elements & Periodic Table

Process Skills Checklist

Materials:

• lauric acid
• thermometers
• clock
• tert-butyl alchohol
• beakers
• test tubes
• electric heater

Safety Concerns:
Irritating odors upon prolonged exposure with overheating after melting. Use adequate ventilation. Avoid overheating.

Revision Date:
Summer 2001