Chemistry Blog
Clear, original explainers on chemistry concepts, the periodic table, and how to use this site's tools.
- September 18, 2026
What Is Molar Mass, and How Do You Calculate It?
What molar mass actually means, why it's central to stoichiometry, and how to calculate it for any formula by hand — plus when to just use a calculator.
- September 15, 2026
How to Read the Periodic Table: Groups, Periods and Blocks Explained
A plain-English guide to what rows, columns and color-coded blocks on the periodic table actually mean — and how to use them to predict how an element behaves.