Separation Techniques for Mixtures
The lesson covers various methods of separating mixtures, including filtration, evaporation, decantation, and chromatography. Each technique is explained along with its applications in obtaining pure substances from mixtures.
- 00:00 “Good day everyone, my name is Adekunle, I'll be teaching you chemistry. The topic now is standard separation techniques. When chemist carry out experiments, they produce either a pure softance or an impure softance. A pu...”
- 09:31 “Sometimes it can be liquid and in few cases it can also be gas. It is also used for separation of miscible liquid with widely undue far apart boiling for what does this mean. The mixture can be used for separating mixtur...”
- 13:32 “After a few minutes, the content, if you remove them, you discover that they are now separated into layers. They are now separated into layers and can be, you can now apply the contention to separate the mixtures. The ap...”
Solution and Solubility
This lesson covers the concepts of solution, solute, and solvent. It defines solubility and explains different types of solutions, including saturated, unsaturated, and super saturated solutions. Factors affecting solubility and calculations related to solubility are also discussed.
- 05:28 “Of course, you can see it through, just like you pour your milk, all right, in water. So, you pour your making water. So, the solution you have in that mixture water, you will be able to see through it. Now, later, you w...”
- 24:38 “as you can see it here, all right, are designated as the insoluble, but I've explained insoluble, then slightly or spirally, that's the meaning of this, this, and I use slightly or spirally, is the same thing, all right,...”
- 07:53 “These are collets, where solid particles are dispersed, in liquid medium. A very good example of that, some examples of that are starch, glue, jelly, like your petrullo jelly is an example, so take note of that. Now, we...”
Water and Its Properties
This lesson covers the composition of water, including its chemical formula H2O. It explains the physical properties of water, such as its states (solid, liquid, gas), boiling and melting points, and its ability to dissolve various substances. The lesson also discusses the importance of water in liv
- 16:30 “A solution is a special type of homogeneous mixture composed of two or more substances. An example that you have in the house is salt. You place your salt in water, you mix it together with the spoon. You will notice tha...”
- 09:52 “Removal of adenets of water. When you have our water, how do we remove? How do we make it drinkable? I've said before, the ad water consists of some elements that are mixed when the rain fall drops on the edge crust. And...”
- 10:39 “And when lime is added to that water, it dissolves those in pure substances and makes it drinkable for human. It has several advantages over the ion exchange method. Iron exchange method is another method that can be use...”