OBJECTIVES/OVERVIEW
Objectives
The objective is to use solutions known to contain dissolved cations
to perform a sequence of procedures by which these cations can be
separated and identified. Observations from the known solutions will
then be used to identify cations present in an unknown solution.
Overview
In
this experiment you will use the differences in the solubility of
various cations to perform separations until you reach a solution
or precipitate which contains only a single cation.
Once
the separations are complete, separate tests are performed to identify
positively or confirm the presence of each cation.