how to do experiment of salt analysis 1
Answers
Step 1: Obtain the inorganic salt whose cation and anion you must identify.
Step 2: Conduct preliminary tests for the anion group-wise until you obtain a positive result. Anions and cations are classified into groups that share the same group reagent and therefore, have similar preliminary tests.
Step 3: Once you get a positive result for a preliminary test for an anion, conduct a confirmatory test for that anion. (If you get a positive result, move on to step 4. If you don’t, go back to conducting preliminary tests for anions.)
Step 4: Conduct preliminary tests for cations group-wise until you obtain a positive result.
Step 5: Once a positive result is obtained, conduct a confirmatory test for that cation.
Step 6: Now that the cation and the anion are identified, obtain the chemical formula of the salt by balancing the charges of the cation and anion. For example, if your cation is Fe3+ and your anion is Cl–, the chemical formula of the salt will be FeCl3.
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