Calculated
the Molecular Formula based on (2) ® actual no
of atoms in molecule
= Mass of
Empirical formula x N {integer}
(3) Carried out qualitative chemical tests to get an indication of the functional groups – we will do this in a Practical session.
(4) Absorption
Spectroscopy
for determining the
functional groups
- Amount used » 1 - 15mg
DE = hn absorption of
radiation leads to a change in
the energy states of a molecule.
Infrared
IR n » 1013 Hz