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Analytical Chemistry Lecture / Course Notes
Grasp the concepts of analytical chemistry, including the basics of electrophoresis, chromatography, calorimetry, spectroscopy, crystallography, and spectrometry.
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.
Chromatography with Candy and Coffee Filters
Analyze the dyes used in your favorite candies with paper chromatography using a coffee filter, colored candies, and a salt solution.
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.
How to Clean Laboratory Glassware
Cleaning laboratory glassware isn't as simple as washing the dishes. Here's how to wash your glassware so that you won't ruin your chemical solution, laboratory experiment, or the glass.
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.
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.
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.
Perform the Mohs Test
The Mohs test is one way to determine the hardness of a rock or mineral. You can use the Mohs hardness to help identify an unknown specimen. Here's how you can do the test yourself.
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.
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.
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.
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.
Titration Curves
Titration is a technique used in analytical chemistry to determine the concentration of an unknown acid or base. For all acids, the shape of the graph plotting pH against volume of base titrated fits the same general shapes.
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.
Qualitative Analysis
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.
Complex Ions and Precipitation Reactions
Learn about the complex ions and precipitation reaction which can be used to identify ions in qualitative analysis.
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.
