CHEMDUNN

This episode explains VSEPR (Valence Shell Electron Pair Repulsion) theory, a method for predicting the three-dimensional shapes of molecules. The core principle is that electron pairs around a centr…

This episode explains formal charge, a tool for evaluating Lewis structures. It defines formal charge with the formula FC = V - N - B/2 and outline key rules for its use, such as minimizing charges a…

This episode explains resonance, where a molecule cannot be accurately represented by a single Lewis structure. Resonance occurs when multiple valid Lewis structures can be drawn by moving only elect…

This episode discusses three exceptions to the octet rule: incomplete octets (e.g., boron in BF3), odd electron species with an unpaired electron (e.g., NO), and expanded octets (e.g., sulfur in SF6)…

This episode classifies compounds into three types based on their chemical bonds: ionic, covalent, and metallic. Ionic compounds, formed by electron transfer, are brittle with high melting points and…

This episode provides a six-step guide to drawing Lewis structures, diagrams that show how valence electrons are arranged in molecules. It explains how to count electrons, identify a central atom, an…

This episode explains UV-Vis spectroscopy, an analytical technique that measures how much ultraviolet and visible light a substance absorbs. It describe how the instrument works, its main components,…

This episode explains that an atom's or molecule's magnetic behavior, either diamagnetism or paramagnetism, is determined by its electron configuration. Diamagnetism is present in all substances with…

This episode explains that quantum numbers are a set of four values that serve as a unique address for every electron. The Pauli exclusion principle states that no two electrons can have the same fou…

This episode defines electron configuration as the arrangement of electrons in an atom's orbitals. It explain two notation methods: standard notation (e.g., 1s2) and orbital box notation, and outline…

Think of an electron's path around an atom. If you're imagining a planet orbiting the sun, think again! In this episode, we're diving into the strange and fascinating world of atomic orbitals. We'll …

This episode dives into the predictable patterns of the periodic table, or "atomic trends," that help us understand how elements behave. It explains how properties like atomic radius (the size of an …

Every element has a unique identity, but what about its different "versions"? In this episode, we're cracking the code of isotopic notation, the shorthand chemists use to describe an atom's specific …

Ever need to convert miles to feet or milliliters to gallons? Dimensional analysis, also known as the factor-label method, is your secret weapon! In this episode, we're demystifying this powerful tec…

Ever wonder why two words that seem so similar are so different to a scientist? In this episode, we're drawing a clear line between accuracy and precision, two critical concepts in every lab and expe…

Ever stared at a number with a dozen zeros and felt your head spin? That’s where scientific notation comes in! In this episode, we're unraveling the genius of this mathematical tool that chemists use…

What makes a bowling ball sink and a beach ball float? The answer is density! In this episode, we're unlocking one of chemistry's properties. We'll demystify what density truly is—a measure of how mu…

Everything you see, touch, and even breathe is matter. But how do scientists organize and understand the vast variety of substances in the universe? In this episode, we're tackling the classification…

Ready to master the art of chemical mixing? In this episode, we're stepping into the lab to show you how to accurately and safely prepare a solution. From understanding the difference between a solut…

Join us on this episode as we dive deep into the world of molarity, a fundamental concept in chemistry that's way more than just a fancy word. Have you ever wondered how scientists precisely measure …