There are two general situations in which qualitativeysis is used - in the identification of a simple salt, or the identification of multiple cations in a solution. Identifying a Simple Salt The basic testing procedure for identifying a salt is as follows.. Best Answer: figure out the density. every metal has it's own. just fill a glup to the top with water, and then carefully put the metal in. measure how much water is displaced either by collecting the water or by measuring the glafterwards .The main objective of this experiment is to carry out qualitativeysis to identify metal cations in unknown solution 1. INTRODUCTION An unknown material can be determined by using simple chemical tests and separations which ised as inorganic qualitativeysis..Chemical tests for identifying cations positive ions - metal cations, ammonium and hydrogen ion etc. Doc Brown's Chemistry Qualitative Methods of .ysis Revision Notes.