DISCUSSION:
Qualitative analysis is used to determine the presence of cations or anions present within a sample and their impurities. Information known, such as chemical and physical properties, about cations and anions can be used to determine what steps should be used to separate the sample into one, specific ion. Qualitative analysis involves forming and decomposing complex ions. Qualitative tests are very sensitive, allowing to detect a very small amount present in sample. Due to sensitivity, cleaning utensils and accurate observations are essential to results. Many basic principles are applied to determine the impurities or cations.
To determine which impurities are present, scheme or flow chart is followed. Scheme is used to help draw conclusions while keeping an accurate record of a place in the experiment. Each step will end with a supernatant and precipitate. At the end of the scheme, only one of the starting cations shall be present in the precipitate or......
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