1. Aim: How to convert from particles to moles and vice versa
Do Now: In pairs compare and discuss your responses to the homework.

2. The Mole
Mole (mol) = the SI base unit used to measure the amount of a substance
1 mole of anything contains 6.02 x representative particles

3. What is Avogadro’s Number
6.02 X 1023 representative particles/mol
1 mol of any substance has 6.02 X 1023 representative particles

4. What are representative particles?
Representative particles refers to the species present in a substance: usually atoms, molecules, or formula units

5. Solve How many moles of magnesium is 1.25 X 1023 atoms of magnesium?
(1.25 x 10^23 atoms of magnesium) x ( 1 mole of magnesium/ 6.02 x 10^23 atoms of magnesium) = mol of magnesium

6. Solve
How many atoms can be found in 3.91 moles of xenon?