Water especially the one which flows through the pipe contains atmospheric gases, such as nitrogen and oxygen, dissolved in it. As the glass filled with water sits out for a few hours, its temperature rises slightly (water gets warmer),...

How do we used deadbands to control temperature in hvac heating and cooling systems?

It's time to check out Group 17 on the periodic table, the halogens. This includes fluorine, chlorine, bromine, iodine, astatine, and tennessine. What can we say about their properties, reactivities, and applications? Let's find out!

We know that the free energy change associated with a process will tell us whether it is spontaneous or not. And we also know that this depends on the change in enthalpy and the change in entropy for that process, as well as the...

Chef Aaron Woo of Natural Selection in Portland, Oregon, shows us how to make a Parisian herbed gnocchi served over a bed of English peas and basil pesto.

Nicole Rees and Lisa Bell, the former a food scientist, and the later a former artisan baker, demonstrate how to make authentic, East Coast bagels from basic ingredients.

Next in the series of olefination reactions is the Peterson olefination. This uses alpha-halo silanes and is quite fascinating, with a number of unique advantages. Namely, the stereochemistry of the alkene product can be controlled by...

Brewer Greg Lorenz of SakéOne shares a few tips for drinking premium saké.

Organic chestnut farmer, Chris Foster demonstrates how to roast fresh chestnuts. Chestnut season runs between October and December. This is the time of year to enjoy roast chestnuts at their peak of freshness over the holiday season.

Lab Exercise 1: Introduction to Microbiology

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...

The pirates are off to find more treasure! Will they make it across the stormy seas? This lesson will survey the physical properties of metals, non-metals and metalloids. Definitions included: physical property, standard ambient...

What's butter made of? What about olive oil? Well they're lipids, which are largely nonpolar substances. Why is one solid at room temperature and the other is liquid? What are trans fats and why are they bad for you? Let's find out all...

Gibbs-Helmholtz Equation Solution

Sometimes we do chemistry or take measurements at something called "standard conditions". What does this mean? It refers to a particular temperature and pressure, since these are factors that will often affect the experiments we do....

Description of the conditions required for liquefaction of gases in terms of critical temperature, critical pressure and critical volume.

Do you want to know how to calculate the volume of gases? This chemistry video will show you how to do it with simple real world examples. If you know two of these three, you can work out the third: mass in grams, number of moles and...

Learn the basics about Behaviour of metallic structures. How many types of metallic structure do you know? and what are their purposes? Find out more in this video!

In this video to learn about the molar volumes of gases, how to calculate this and where this knowledge is needed in everyday life.

Now that we have covered some important separation techniques, let's take a look at a purification technique. Sometimes a chemical reaction will produce a solid, which can precipitate from solution. But these crystals typically contain...

In this video students will come to understand the basic difference between ionic and covalent bonding. Viewers will learn that covalent bonds form between non-metallic atoms that share pairs of electrons and covalent bonds form between...

The video is about the various techniques used to separate different components of a mixture. The presenter discusses the differences between mixtures and compounds, and how mixtures are not chemically combined, but rather just mixed. He...

Learn the basics about fats and oils, more precisely plant oils. Where are these found? How do we extract fats and oils from plants? What are the fats and oils used for? Find out more in this video!

This video explains the heat transfer equation, Q equals MC delta T, which helps us understand the math behind thermodynamics. It breaks down the meaning of each variable in the equation and provides an example of how to use it to...