Question

24. () Metal ion solutions also contain anions such as chloride ion. When you observe the emitted light of metal ion solutions, how do you know the resulting spectra comes from t sodium ion, and not the anion, such as chloride ion? (2) Describe an experiment you could perform to verify your answer to (1). 5. Sodium ion, a common contaminant of potassium salts, often interferes with potassium ion flame tests. To get around this problem, we view the flame through a piece of cobalt blue glass to mask the color of the sodium ion flame. Briefly explain why the blue glass blocks the yellow light of the sodium ion flame but still allows the violet light of the potassium ion flame to pass through.

Answer 1

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