Before you read this, I suggest you read post 17.49. In post 17.49, we saw that an acid is something that acts as a source of hydrogen ions; something that reacts with hydrogen ions is called a base. A base that can dissolve in water is called an alkali. An alkaline solution is a solution… Continue reading 17.50 Alkalis

Before you read this, I suggest you read posts 16.30, 16.33, 16.39 and 17.48. In 2017 there was an alarming increase in attacks in London in which victims had acid thrown in their faces. One way in which these attacks could be reduced might be to make it illegal for people to carry acids in… Continue reading 17.49 Acids

Before you read this post, I suggest you read posts 16.27 , 16.30 and 16.33. No, this post isn’t about the mole in the picture. It’s about a completely different type of mole – the mass of a pure substance that contains the Avogadro’s number (post 16.27) of molecules (post 16.30). As an example, we’ll… Continue reading 17.48 Moles