Author Archives: dcashman

Tutorial: UNIX and Linux Information

Posted on June 29, 2021 by dcashman

The systems in the computer modeling laboratory, as well as Tennessee Tech University’s HPC cluster, run versions of the Linux operating system. Linux is a family of open-source, UNIX-like operating systems that are based on the Linux kernel. UNIX is … Continue reading →

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Tutorial: Converting a 2D Sketch of a Molecule to 3D

Posted on June 29, 2021 by dcashman

Many Chemistry students learn how to use ChemDraw to sketch a 2D molecule on the screen during their undergraduate or graduate education. ChemDraw is the de facto standard for producing chemical drawings, and is widely used by faculty and researchers … Continue reading →

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Chemistry Demonstration: Catalytic Decomposition of Hydrogen Peroxide (Elephant’s Toothpaste)

Posted on June 29, 2021 by dcashman

Introduction Hydrogen peroxide (H2O2) naturally decomposes to produce oxygen and water. However, this process takes a very long time. It may be sped up by the addition of a catalyst. In this experiment, we will use the iodide ion (I–) … Continue reading →

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Chemistry Demonstration: Acids and Bases

Posted on June 29, 2021 by dcashman

Introduction This experiment demonstrates the basic concepts of what acids and bases are, and introduces participants to the pH scale and how a chemical can be identified as acidic, basic or neutral using a simple, colorimetric qualitative test (e.g. no … Continue reading →

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