The Bunsen burner is the most common and most convenient heating source in most chemistry laboratories. It was invented by Professor Robert Bunsen in 1855. It consists of three main parts: How a Bunsen burner Works The Bunsen burner is normally connected to an external source of laboratory gas (usually methane) by rubber tubing. The … Read more
A laboratory is a building or special room specifically designed for conducting experiments, research, and practical demonstrations related to chemical principles and reactions. It is equipped with various equipment (or apparatus) and chemicals necessary for carrying out experiments safely and effectively. Most laboratory apparatuses that are used as containers or reaction vessels are made with … Read more
The study of chemistry involves conducting numerous experiments, which require the use of various chemicals and pieces of apparatus. These experiments typically take place in a specialized room known as a Laboratory. Thus, a laboratory can be described as a dedicated space or building where chemicals and equipment are stored, and practical subjects like chemistry … Read more
We have used the terms “physical” and “chemical” properties of substances in previous posts, and we will use them frequently in subsequent posts. Therefore, it is important to understand what they mean in chemistry. Each substance possesses a unique set of properties that distinguishes it from other substances. These properties can be classified into two … Read more
What happens to the temperature of a substance when it is heated or cooled? Many students think that temperature increases smoothly from solid to gaseous states but that is not the case. Heating and cooling curves are often used to depict the temperature changes of substances as heat is added or removed over time. … Read more
The primary states of matter—solid, liquid, and gas—exhibit distinct properties, which we have explored in this post. Now, let’s revisit the properties of gases. We previously established that “Gases have indefinite shapes and volumes but definite mass.” While we explained why gases have indefinite shapes and volumes, we only briefly mentioned that they have definite … Read more
In this post, we learned that matter exists in three main states depending on environmental conditions like temperature or pressure: solid, liquid, and gaseous states. We also discovered that these three states are not the only ones in which matter can exist; there are also the 4th and 5th states of matter (see previous post). … Read more