Empirical Formulae

IQ2: How are measurements made in chemistry?

Students:

● explore the concept of the mole and relate this to Avogadro’s constant to describe, calculate and manipulate masses, chemical amounts and numbers of particles in:

– moles of elements and compounds 𝑛=𝑚𝑀𝑀 (n = chemical amount in moles, m = mass in grams, MM = molar mass in gmol-1)

– percentage composition calculations and empirical formulae