Lab Equipment & Instruments
Find images of laboratory equipment and instruments, including glassware and antique items.
Chemistry Laboratory Glassware Gallery
Learn the names and uses of different types of chemistry laboratory glassware.
Introduction to Spectroscopy
Learn what spectroscopy and spectra are, how spectroscopy works, and what it is used for. This article includes a list of several different spectroscopies, with brief descriptions of their characteristics.
Qualitative Analysis - Flame Tests
The flame test is a quick low-tech method of identifying an element by the color of light it yields in a flame. Learn how to perform this test and to interpret the results.
A flame test is an easy experimental technique used to help identify a metal or ionic salt based on its emission spectrum when it is heated in a gas flame. Here's how to perfom a flame test and interpret the results of the test.
Qualitative Analysis - Bead Tests
The borax, microcosmic salt, or sodium carbonate bead test may be used to help identify unknown metals. Learn how to perform and interpret the results of this handy analytical test.
How to Read a Meniscus
The meniscus is the curve seen at the top of a liquid in response to its container. When you read a scale on the side of a container with a meniscus, such as a graduated cylinder or volumetric flask, it's important that the measurement accounts for the meniscus. Here's how to read a meniscus.
Gas Chromatograph Diagram
This is a generalized diagram of a gas chromatograph or gas-liquid chromatograph.
Measurement of Heat Flow - Coffee Cup & Bomb Calorimeters
A calorimeter is a device used to measure the quantity of heat flow in a chemical reaction. Learn about two of the most common types of calorimeters, the coffee cup calorimeter and the bomb calorimeter, and find out how to use them to calculate heat flow and enthalpy change.
Experimental Determination of Avogadro's Number
Did you know that Avogadro's number isn't a mathematically derived unit. The number of particles in a mole of a material is determined experimentally. This easy method uses electrochemistry to make the determination.
Flame Test Video
This chemistry video explains what a flame test is and then describes three ways to perform a flame test to identify the components of an unknown sample.
Vitamin C Determination by Iodine Titration
Use this redox-based iodometric titration to determine the amount of Vitamin C or ascorbic acid in juice and other samples.
How to Perform a Recrystallization
Recrystallization is a laboratory technique used to purify a sample based on the different solubilites of its components. Learn how to perform a recrystallization and get tips on how to avoid common problems and improve your product yield.
Identify an Unknown - Experiment with Chemical Reactions
Use this chemistry lesson plan to help students use the scientific method to design experiments to identify the components of an unknown mixture.
Red Cabbage pH Paper
Learn how to make your own pH indicator test strips using red cabbage. This is a fun, safe, and easy chemistry project that you can do at home.
Poinsettia pH Paper
You can make pH indicator from poinsettia flowers, then use the indicator to make your own pH paper test strips.
Complex Ions and Precipitation Reactions
Learn about the complex ions and precipitation reaction which can be used to identify ions in qualitative analysis.
Titration Basics - Acids Bases and Buffers
Grasp the basic chemical concepts of titration, a technique used to determine the molarity of an acid or a base.
Qualitative analysis may be used to detect, identify and separate anions and cations in a sample. This is an introduction to the concepts and procedures used in qualitative analysis.