“How do we can we find out if an acidic or basic reaction is occurring?”


When doing Chemistry, we will have to perform a lot of chemical reactions. However, sometimes these reactions can be invisible to our eye. Therefore, finding a way to know if a chemical reaction is going on would be quite a necessity to our interests. Since there are many types of chemical reactions, let’s start with one kind, acid-base reactions. So how can we know if acid-base reactions are going on? Well, let’s think about it for a moment. We know that when a base reacts with an acidic solution, hydronium ions[HO3] are released. And we know that weak acids not only can react with these hydronium ions but are also dissolved but not dissociated in solutions. This means that hydronium atoms can exist within a solution without altering the chemical properties much. Now all we have to figure what type of weak acid would be pertinent to our interest. Well, luckily for us, Chemists have discovered an element known as Phenolphthalein which actually changes it’s color depending on the pH of the surrounding substance! Specifically, Phenolphthalein will become clear in the case of a net acidic reaction, and pink in the case of a basic reaction. Phenolphthalein is used for chemichal purposes all over, whether it is for tritration or simple reactions.

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