The mole

Module 2

IQ2: How are measurements made in chemistry?

Students:

●conduct a practical investigation to demonstrate and calculate the molar mass (mass of one mole) of:

• • an element

  • a compound

●conduct an investigation to determine that chemicals react in simple whole number ratios by moles

●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

  • limiting reagent reactions