Quick questions regarding flame test. Answers needed ASAP.?

Question

In doing a flame test...
Why is it that you have to subject the sample to a flame?

What will happen if the flame test is performed on a solution with more than one metal component?

Aside from the qualitative analysis of metals, state at least one other application of flame tests.

Answer 1

i dont know about metals and solutions but in my experiments, flame tests have been used to determine gases. CO2 and O. when exposed to O the flame will remain lite or light up. CO2, you will hear a loud "pop" from the flame if the CO2 is in a bottle.

Answer 2

Subject the sample to the flame in order to drive off electrons from the ions you are testing. Then, when the electrons relax back to the ground state, you see a characteristic color in the flame.

Suppose you have a sample with Na+ and K+. Then the brilliant yellow of Na+ will drown out the faint lilac color of the K+ flame. So: You put a square of blue cobalt glass over your one eye when observing the flame color of a mix of Na+ and K+. That will screen out the yellow flare and let you see rthe lilac flame color.

Answer 3

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