Practice Qualitative Analysis (4.2) - Analytical Chemistry

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6 sample questions

Question 1.
What is the purpose of qualitative analysis?
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It focuses on cations and anions.
Question 2.
What do you observe when adding acid to a carbonate?
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Think about the reaction that occurs.
3Question 3.
What is the main focus of qualitative analysis?
- Determining the mass of ions
- Identifying the presence of specific ions
- Measuring the concentration of solutions
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Think about what this analysis is called.
4Question 4.
True or False: Cations are negatively charged ions.
- True
- False
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Remember the definitions of charge types.
Question 5.
You are given a sample with unknown ions. Describe the steps you would take to identify the presence of both a cation and an anion. List the reagents and expected observations.
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Think about the systematic tests for both types of ions.
Question 6.
If a precipitate forms when adding NaOH to a solution containing iron(II) ions, how could you further test that sample to confirm the presence of iron(III)?
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Consider what distinguishes the oxidation states of iron.

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