Featured in PASCO’s Chemistry through Inquiry Teacher Guide
Features over 25 inquiry based labs covering the fundamental concepts of lab skills, structure & properties of matter, chemical reactions and more.
Use a conductivity sensor to determine if an unknown substance is an ionic, polar covalent, or non-polar covalent compound based on its physical properties.
Determine if an unknown substance is an ionic, polar covalent, or non-polar covalent compound based on its physical properties. Through this investigation, students:
Students conduct the following procedures:
Graduated cylinder, 10-mL
Test tube, 15-mm × 100-mm - 5
Test tube rack
Stopper to fit test tubes - 3
Aluminum foil squares, 5-cm × 5-cm - 6
Wash bottle and waste container
Distilled (deionized) water - 30 mL
Table salt (sodium chloride) - 1 g
Table sugar (sucrose) - 1 g
Paraffin wax - 1 g
Unknown A (use glucose) - 1 g
Unknown B (use crayon pieces) - 1 g
Unknown C (use potassium chloride) - 1 g
This experiment may require software and an interface for data collection.