Advanced PlacementCollege / Chemistry

A Chemistry Mystery: Name That Unknown!

Students use several methods to characterize compounds according to the nature of intramolecular bonding.

Compounds are characterized as ionic, polar covalent or nonpolar covalent based on several physical and chemical properties tested by students. This lab uses a large variety of wireless sensors to conduct these studies. Students are expected to find patterns in compound characteristics and use that knowledge to identify a series of unknown substances provided by the instructor.


Student Files

06_ACI_A_Chemistry_Mystery_S.docx 1.10 MB
06_ACI_A_Chemistry_Mystery_S.pdf 1.26 MB

Teacher Files

Sign In to your PASCO account to access teacher files and sample data.

Standards Correlations

IB Topics AP Topics
4.3; 4.5 SAP-3.A; SAP-5.B; SAP-3.D

Featured Equipment

Heater Stirrer

Heater Stirrer

This compact hot plate and stirrer is an essential for any chemistry lab!

Wireless Conductivity Sensor

Wireless Conductivity Sensor

This waterproof sensor connects via Bluetooth® to measure both conductivity (ionic content in solution) and total dissolved solids.

pH Sensor

Wireless pH Sensor

Here’s the best tool for measuring pH since litmus paper. The Wireless pH Sensor connects via Bluetooth® to monitor the pH of solutions.

Many lab activities can be conducted with our Wireless, PASPORT, or even ScienceWorkshop sensors and equipment. For assistance with substituting compatible instruments, contact PASCO Technical Support. We're here to help.

Copyright Disclaimer: Section 107 of the Copyright Act of 1976 makes allowance for “fair use” for purposes of teaching, scholarship, education and research. Reproduction under any other circumstances, without the written consent of PASCO, is prohibited.
Source: Lab #06

Advanced Chemistry through Inquiry

A Chemistry Mystery: Name That Unknown!