1. Mole
   1. Number of atoms in one mole
      1. Avogadros Numbers
   2. of gas
      1. MOLAR VOLUME
         1. volume of one mole of gas contains Avogadros number of particles
            1. same
            2. all gases
            3. same temperature
            4. same pressure
         2. Avogadro's Law
            1. all gases
            2. same pressure
            3. same temperature
            4. same number particles/molecules
            5. Molar Volume
            6. 24000cm3 (24dm3)
            7. at room temperature and pressure (RTP)
            8. 25C
            9. normal atmospheric pressure
            10. 22400cm3 (22.4dm3)
            11. at standard temperature and pressure (STP)
            12. 0C
            13. normal atmospheric pressure
            14. volume in cm3
            15. dm3 = cm3/1000
   3. solid
2. Relative Formula Mass
   1. Mr = Sum(Ar)
      1. add up the relative atomic masses (Ar) of atoms
      2. H2O
         1. H = 1
         2. O = 16
         3. H2O = 18
      3. CO2
         1. C = 12
         2. O = 16
         3. RMM = 44
      4. mass of one mole
         1. NaCl = 58.5g
         2. CO2 = 44g
3. Relative Atomic Mass
   1. Ar
   2. mass of 1 mole
      1. Carbonm = 12g
4. Chemical Formula
   1. A representation of the chemical composition of a substance
   2. Molecular Formula
      1. molecule of substance
         1. number of atoms
         2. type of atoms
         3. C6H14
            1. 6 carbon
            2. 14 Hydrogen
         4. Number of atoms of each element in one molecule
   3. Structural Formula
      1. How atoms are connected
   4. Empirical Formula
      1. simplest whole number ratio of atoms in compound
      2. same empirical formula
         1. glucose
            1. C6H12O6
         2. lactic acid
            1. CH3CH(OH)COOH
         3. acetic acid
            1. CH3COOH