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Flame Testing Lab make-up

Materials:

  • Well plate
  • Beaker with water
  • Beaker with alcohol
  • Metal Salts
  • Q-tips (10)
  • Paper towels

Procedure:

  1. Obtain a small scoop of each chemical in separate wells of your well plate.  Record the appearance of each of the salts (color, texture, etc).
  2. Light your Alcohol burner/candle.
  3. Dip the Q-tip in the beaker filled with alcohol and then into one of the chemicals in your well plate. 
  4. Light the Q-tip on fire with the Alcohol burner.
  5. Watch for a change in the color of the flame.  Look for the short bursts of color.
  6. Record your color observations in the data chart.
  7. Drop your burned-out Q-tip into the beaker filled with water.
  8. Repeat this procedure for each chemical.
  9. Once you have tested all of the metals and gotten clear color results, obtain the two unknown samples in your well plate.  Flame test the unknowns and record the results in the table.  Be sure to note which metals you think are in the unknowns (unknowns may or may not be mixtures of the metals)
  10. Clean up your table and place materials back where you found them.

 



Use the pictures of the chemicals to make initial observations on your lab handout.  Then view the videos to see the distance flame colors given off by each chemical.
 
Barium 

Barium

 
 

Calcium

Calcium

 
Copper

Copper

Lithium

Lithium


Potassium

Potassium

 
 
Sodium
 

Sodium

 
 
Strontium
 

Strontium


Unknown #1

Unknown #1


Unknown #2

Unknown #2