Flame Emission Spectroscopy | GCSE Chemistry Practice
Instrumental methods like spectroscopy provide faster, more accurate results than traditional chemical tests.
Why is spectroscopy better than a simple flame test for a mixture of ions?
What is Flame Emission Spectroscopy | Practice?
"An instrumental method used to identify metal ions in solution and measure their concentration."
What color flame does a Sodium (Na+) ion produce?
A student sees a lilac flame during a test. Which ion is present?
Why can a flame test be unreliable if the sample is a mixture of ions?
Instrumental Analysis
Sample is put into a flame and the light emitted is passed through a spectroscope.
Each ion produces a unique "line spectrum".
Can identify multiple ions in a mixture (unlike flame tests).
Also tells you the concentration of the ion.
Tech Advantage: Instrumental methods are highly sensitive, and fast, but the equipment is very expensive.
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