Draw a rectangle and a square

Some ionic compounds are coordinated to a specific number of water molecules in solution. But how many? How can we find out? We can't see molecules! Whatever will we do? Something very clever, as it turns out. Take a look!

Born-Lande Equation: The Born Exponent

The world's most accurate atomic clock based on neutral atoms has been demonstrated by physicists at JILA, a joint institute of the National Institute of Standards and Technology (NIST) and the University of Colorado at Boulder. The JILA...

Learn all about parabolas in conic sections. We will discover the basic definitions such as the vertex, focus, directrix, and axis of symmetry. We will also take a look a basic processes such as graphing, writing the equation and...

At WSJ Tech Live, Carbon CEO Ellen Kullman discusses how her billion-dollar startup pivoted to become a relevant player with 3D printing in the pandemic.

Giant ionic structures also have exceptionally high melting points. This is because the electrostatic interactions between the ions are very strong. Mg2+ and O2- ions have double the number of charges on their ions than Na+ and Cl- ions...

Learn how to graph a horizontal parabola. A parabola is the shape of the graph of a quadratic equation. A parabola is said to be horizontal if it opens to the left or opens to the right. A horizontal parabola results from a quadratic...

We've learned a lot about solution chemistry, and we've also learned about thermodynamics and spontaneity. So what about the spontaneity associated with dissolution? If an ionic solid dissolves in water, is this an enthalpically or...

This program covers the very important topic of hydrate compounds. We begin by discussing what a hydrate compound is and why they exist in nature. We discuss how to name hydrate compounds using numerous examples. The entire lesson is...

In the early 2000s, physicist found a diamond they’d been searching for. Find out what it was used for.

We've learned about ionic and covalent bonds, so we understand the interactions that will occur between a metal and a nonmetal, or between two nonmetals. But what about two metals? Metallic bonding! This ends up being sort of like ionic...

Different ionic compounds will adopt different lattice structures, which are essentially different geometries. If we know the lattice structure of a compound and we know some information about the dimensions of its unit cell, we can do...

As long as we're naming stuff, let's name these hydrated salts! You know, like epsom salts?

Determine Lattice Energy from Kapustinski Approximation

Now that we have covered a variety of separation techniques, we know how to get an isolated product! But if it's a solid, it may contain impurities. Recrystallization is a common organic chemistry laboratory technique for the...

Learn the basics about alloys and their properties as a part of metallic bonding within the properties of matter topic.

The video provides an explanation about the structure and behavior of ionic compounds. It discusses how positively and negatively charged ions are attracted to each other and arrange themselves in a giant lattice structure to maximize...

It explains crystal lattice in detail. It also explain the term unit cell, its dimension & classification into primitive unit cell & centered unit cell.

How a superconductor works. Everything from the physics and some of the history as well. Superconductors were discovered in 1911 by Heike Kamerlingh Onnes. It was discovered because it was made possible to liquefy helium which produced...

We know that liquids and gases can form mixtures, but did you know that solids can, too? Even metals! Mixtures of metals are called alloys, and they have tremendous technological application. What is the structure of an alloy? Are there...

Learn the basics about changes of state as part of the solids, liquids and gases topic within properties of matter.

Solute particles interfere with the physical processes a solution may undergo. These are known as the colligative processes of a solution. Ever wonder why we put salt on icy streets? Find out here!