Preparation of Snacks and Drinks
The lesson covers the preparation of donuts and coffee drinks. It includes the ingredients needed, the steps for making donuts, and how to prepare coffee. The lesson also discusses the importance of yeast in dough preparation.
- 06:15 “because there are some chemicals that is being emitted from the meta that we use to present our drinks. Now, another drink that we have here is watermelon drink. What are those ingredients that you need? You need one or...”
- 00:47 “and number four, give three, marketing principles. Now let's go into the preparation of snacks. Now today we'll be talking about donuts, how to prepare donuts. For donuts, we have this ingredient, what we'll be making us...”
- 03:56 “Add the boiling water, add sugar or only to test. Then add your milk if you desire. Let's go into fruit drinks. Fruit drinks are made from different types of fruits. They can be made into fruit drinks or juice. Fruit dri...”
Definition and Classification of Chemicals
This lesson defines chemicals and explains their various forms, including solids, liquids, and gases. It also classifies chemicals their hazardous nature and discusses safety measures when using them.
- 12:11 “ion is one to one. That's why I have NACL. Then we have methane, which is CH4. It's an organic compound. So, you have an atom of carbon and four atoms of hydrogen. So, the ratio of hydrogen to the carbon is four ratio on...”
- 13:50 “involves a solute material and a solvent and the form what is referred to as solution. Take, for example, what's every one of us, we are used to, that's drinking of Gary. When you pour the Gary into the water, it mixes p...”
- 30:09 “watching. My name is Uche Ugo. Till the next class.”
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.
- 03:54 “all right, type of solution. Now, a solid liquid solution, an example of that is a sugar in water, all right? Now, later, we're going to find out that, you see, the more increase in temperature you have in a particular,...”
- 03:08 “Then you have a gas dissolving the liquid, an example of that is a carbon dioxide in soda. Then a gas in solid, a very good example of that is a hydrochloric gas in palladium metal, all right? Then another type or catego...”
- 19:52 “the pressure has negligible effect on the solubility of liquid and solid solutes, but it has a strong effect on solution with gaseous solute, okay, now this is apparent every time you open the soda can, all right, the hi...”