1.4. Gram Atomic Mass, Gram Molecular Mass and Gram Formula Mass
1.5.1 Avogadro’s Number 1.5.2 Mole
Relationship between ( substance and a mole) and (mole and mass)
1.6 Chemical calculations part 1
1.6 Chemical calculations part 2
Chapter 1 Test yourself (part 1)
Chapter 1 Test yourself (part 2)
Chapter 1 Test yourself (part 3)
Chapter 1 Test yourself (part 4)