Vernier Software and Technology
Vernier Software & Technology

Identifying an Unknown Substance


Occasionally, despite the best efforts of the most meticulous workers in a chemistry lab, containers with no labels are discovered. When this happens, there are two major concerns: making sure all the workers in the lab are safe and identifying the contents of the container.

In the scenario presented in this investigation, several unlabeled bottles have been found in your laboratory stockroom. Each unlabeled bottle contains a solid substance. The lab director, through some very careful research, has narrowed the list of possible substances in the bottles.


The objective of this investigation is to identify the contents of a bottle assigned to you, knowing only that it is one of the twenty substances.

Sensors and Equipment

This experiment features the following Vernier sensors and equipment.

Option 1

Option 2

Additional Requirements

You may also need an interface and software for data collection. What do I need for data collection?

Experiment 6 from Vernier Chemistry Investigations for Use with AP* Chemistry Lab Book

<i>Vernier Chemistry Investigations for Use with AP* Chemistry</i> book cover

Included in the Lab Book

Vernier lab books include word-processing files of the student instructions, essential teacher information, suggested answers, sample data and graphs, and more.

Buy the Book

Go to top