Uses of Acids and Bases
We discussed while back, that when an atom or molecule releases or accepts electron we get ions. And we introduce these ions in solution, the solution get a new name, electrolyte. Electrolytes are important, so you need to get them in to your mind. Now that you know that what they are, we need to understand where they came from. And it was in 1887, Svante Arrhenius presented the idea of electrolytic dissociation. What he said was very simple. When a particular substance is dissolved in water it produces hydrogen ions, and then he called it an acid and therefore all acids that follow this are called Arrhenius acids. A particular substance, when dissolved in water produces OH- ions is called a base. All bases that follow this are called Arrhenius bases. Before we look into the properties we first need to understand how these acids and bases are useful to us. Let’s now understand where these acids are being used. Let’s first talk about the sulphuric acid. Which is known as the king of all acids because it is used in battery acids, ore processing, fertilizer manufacturing and in oil refining. When we talk about the next acid, which is hydrochloric acid, is used as a strong agent for cleaning metals, bricks and removing stain from boilers. I am going to answer one answer which put to you in the beginning. The world famous statue of liberty, it was gift from France to the United states of America, it stands 91.5 meters tall and weighs 210 tones. The outer layer of the statue is made up of around 300 overlapping copper plates. So initially, when it was gifted, it was coppery brown in color. But now because of exposure to moisture,and air, it turned green in color. Which you think the most suitable substance for you to remove this rust? Yes it is HCL . you must be thinking why aren’t we are using this HCL to restore it to its original grantor? This seems to be a very simple solution isn’t it? But you have to wait for some time for you to understand why we are not doing that.