Moles & Mass

• A mole is the unit we use to measure the amount of chemicals we have. 1 mole of any substance means 6.02x10^23 particles.
• Avogadros constant (6.02x10^23) means that the mass of any substance will be the same number as that substance's relative atomic mass in grams.
• The number of moles in a sample = mass of that element or compound / Mr
• Remember: Mr Massive Mole to remember the equation