L1 /
10
CH1012
CHARACTERISATION I
3.
Characterisation of Organic Compounds
New (or well known) compound
e.g. CH2 empirical form. C6H12 molecular
form.
(1) Elemental analysis C%
H% N%
(%O by difference)
(%O by difference)
- Amount used
1mg
Þ Empirical formula (must know how to do)
- relative number of atoms in a molecule
Þ Empirical formula (must know how to do)
- relative number of atoms in a molecule
(2) Mass spectrum [M]+ = molecular weight
- Amount used 1mg molecular ion
