In our Flame test it contained cholride ions and metals ions How do I know that the metal Ions are the ones that made the color change and not the cholride?
2006-10-09 15:36:43 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
Demonstration flame tests are usually conducted with salts which have the same non metal component. For example, sodium chloride, copper chloride, cadmium chloride, barium chloride etc. If the chloride ion were responsible for the color of the flame all of these would produce the same color which is not the case. Therefore the color of the flame must be due to the metal component.
2006-10-09 17:45:01 · answer #1 · answered by JimWV 3 · 0⤊ 0⤋
When I conducted flame tests, I not only always used chlorides of the metal ions, I also used a nitrate of one to prove that it was the metal ion. But if the metal ions eaach give different results, then it was not the chloride doing it.
2006-10-10 15:05:16 · answer #2 · answered by science teacher 7 · 0⤊ 0⤋
well if you know the correct reason for the colour of flame you can answer the question yourself
the colour is due to the excitationof electrons when you heat the salt the electrons get excited and jump to higher levels but in clorine atom the electrons are tightly bound to the nucleus and therefore cannot jump high enough to impart a significant colour change thats why the colour you see is due to the metal ions
2006-10-09 23:45:06 · answer #3 · answered by rachit t 2 · 0⤊ 0⤋
metal; due to the impurities
2006-10-09 22:47:38 · answer #4 · answered by big dawg 3 · 0⤊ 0⤋