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Qualitative Analysis: for Ba 2+ , Mn2+ , and Cu2+ .
Introduction
The main purpose of this experiment is to learn how to conduct qualitative tests to determine if certain cations are present in a given solution. In this experiment we will test for the presence of three cations: Ba 2+ , Mn2+ , and Cu2+ . ...
Qualitative analysis is the procedure by which one can identify the constituents present in a sample of a substance, or a solution. The types of reactions encountered in qualitative analysis include precipitation, complex ion formation, redox, and acid-base reactions. Some means of identifying ions by qualitative analysis include color changes, change in pH (acidity or basicity), or by the ability to redissolve a precipitate by addition of a complex ligand.
Procedure
Test for Ba 2+
In a test tube, 5 drops of 0.2 M BaCl2 , and 5 drops of distilled water were added. ... Then a flame test was performed to confirmed the presence of Ba 2+ ions. ...
Test for Mn 2+
In a test tube, 5 drops of 0.2 M Mn(NO3)2 , and 5 drops of distilled water were combined. Then one drop of 1 M HCl , and 1 drop of 3 M H2SO4 were added, followed by the addition of 4 drops of 2 M NaOH.
Approximate Word count = 1053
Approximate Pages = 4.2
(250 words per page double spaced)
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