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Learn Chemistry with Us
- New Lessons
Ley combinada de los gases
Ley combinada de los gases Conceptos básicos La ley combinada de los gases define la relación entre presión, temperatura y...
What is Atomic Mass?
Core Concepts In this article you will learn about the different things that contribute to atomic mass. What makes up...
Normality and Other Units of Concentration
Core Concepts There are many ways to measure concentration besides molarity. In this article we will discuss normality, specifically how...
Raman Spectroscopy
Raman Effect & Raman Scattering Raman spectroscopy is a nondestructive analysis technique that focuses on the vibrations of molecules and...
- New Elements
The Notable Element Niobium
Introduction to Niobium The element niobium is a lustrous, crystalline, and ductile transition metal. Jet engines and both oil and...
The Toxic Element Cadmium
Interactive Periodic Table and Related Topics An Introduction to the Element Cadmium Discovered by Friedrich Stromeyer in 1817, Cadmium is...
The Hardworking Element Hafnium
Introduction to Hafnium Identified in 1923 by Dirk Coster and George de Hevesy, hafnium is a lustrous, silver-grey transition metal....
The Ruthless Element Ruthenium
Introduction to Ruthenium The element ruthenium is a shiny, silver-gray, brittle metal that looks like platinum. Computer chips, jewelry, and...
- New Experiments
Nitrogen Triiodide Synthesis
Overview Nitrogen Triiodide (NI3) is a brown-purple solid at room temperature that explodes when lightly perturbed. Nitrogen Triiodide is extremely...
Vanadium Oxidation States Experiment
This chemistry experiment shows you how to produce red, orange, green, yellow, blue and purple all in one solution, all...
Lab Procedure: Iodine Clock Reaction
Core Concepts In this lab tutorial, we learn about the iodine clock reaction, including its procedure, underlying chemistry, and data...
Briggs Rauscher Reaction
This is the Briggs Rauscher reaction, the coolest chemistry demonstration on the planet. This is an oscillating reaction, which means...
- New Resources
Paper and Thin-Layer Chromatography
Core Concepts In this article, you will first learn about paper chromatography, its procedure, and its applications. Then, you will...
Scientific Method
Core Concepts The scientific method is a set of steps that scientists may use to create and execute experiments to...
What is Infrared Spectroscopy
Core Concepts Infrared spectroscopy (IR spectroscopy) is a useful analytical technique for analyzing organic molecules. In this article, we will...
Lab Procedure: Simple Distillation
Core Concepts In this lab tutorial, we discuss simple distillation, including its distinction from fractional distillation, its underlying physical chemistry,...
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