HSC Chemistry 27 October 2023
IQ2: How are measurements made in chemistry?
Students:
โ explore the concept of the mole and relate this to Avogadroโs constant to describe, calculate and manipulate masses, chemical amounts and numbers of particles in:
โ moles of elements and compounds ๐=๐๐๐ (n = chemical amount in moles, m = mass in grams, MM = molar mass in gmol-1)
โ percentage composition calculations and empirical formulae
These are problems looking at percentage composition and empirical formulae.