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Exp. 8.6 Flame Test of Some Elements

Exp. 8.6 Flame Test of Some Elements. Critical question:. How can a flame test be used to identify the elements in a compound?. Procedure:

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Exp. 8.6 Flame Test of Some Elements

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  1. Exp. 8.6 Flame Test of Some Elements

  2. Critical question: • How can a flame test be used to identify the elements in a compound?. Procedure: Add small quantities of different compounds on the loop of a nichrome wire and hold it over a flame. Be careful to rinse wire and change beaker water between samples.

  3. Data

  4. Conclusion:

  5. Questions • How could you recognize sodium in a compound by doing such a flame test? • How could you recognize copper? • When you hold a small amount of sodium chloride in a flame, you observe that the flame is right yellow. What could you do to be sure that the color is due to sodium and not chlorine? • When you spill a few drops of soup or milk on a pale- blue gas flame when cooking, the flame changes to a mixture of colors. Yellow is the most intense color. What do you conclude about this observation?

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