Mandatory Lab Ideas, 1.2, Empirical Formula

As you well know, the IB now tells us that we must carry out up to twelve mandatory labs or skills (I say up to as there is some debate whether 9.1, the application of the Winkler method is mandatory or not and the ‘single replacement labs’ occur twice, in 15.1 and 19.1). So I thought I would focus the next few blog posts on some of these mandatory labs, starting with the first on one the list, namely, topic 1.2, ...