Na+ - bright orange flame
K+ - purple flame
Li+ - magenta flame
Ca2+ - bright orange flame
Sr2+ - redish orange flame
Ba2+ - yellow green flame
Cu2+ - green flame
Tuesday, October 20, 2009
Sunday, October 11, 2009
Flame Test Procedure
Materials:
10mL graduated cylinder
wire loop
platinum
laboratory burner
glass marking pencil
tubes
test tube rack
And the elements:
Na+(sodium), K+(potassium), Li+(lithium), Ca2+(calcium), Ba2+ (barium), and Cu2+ (copper)
Procedure:
1. A)Measure about 5mL of tap water into a graduated cylinder.
B)Pour the water into a test tube.
C)Mark the test tube to indicate the water level.
D)Empty the water from the test tube, leaving the marked area there.
E)Mark 6 test tubes at the same spot, place 5 of the test tubes in a test tube rack.
2. A)Place about 5mL of Na+, K+, Li+, Ca2+, Ba2+, and Cu2+.
B)Mark the test tube with the metallic ion it contains.
3. A)Pour 10mL of concentrated hydrocholoric acid into a beaker.
B)Dip the wire loop in the acid to clean it.
C)Heat the wire loop in the outer edge of the bunsen burners flame, keep doing that till no color is in the flame.
4. A)Dip the clean wire loop into one of nitrate solutions.
B)Move the loop up and down in the outer edge of the flame.Record the color of the flame shown.
5. A)Clean the wire loop in the hydrochloric acid.
B)Repeat step 4 making sure you use all the solutions independently.
10mL graduated cylinder
wire loop
platinum
laboratory burner
glass marking pencil
tubes
test tube rack
And the elements:
Na+(sodium), K+(potassium), Li+(lithium), Ca2+(calcium), Ba2+ (barium), and Cu2+ (copper)
Procedure:
1. A)Measure about 5mL of tap water into a graduated cylinder.
B)Pour the water into a test tube.
C)Mark the test tube to indicate the water level.
D)Empty the water from the test tube, leaving the marked area there.
E)Mark 6 test tubes at the same spot, place 5 of the test tubes in a test tube rack.
2. A)Place about 5mL of Na+, K+, Li+, Ca2+, Ba2+, and Cu2+.
B)Mark the test tube with the metallic ion it contains.
3. A)Pour 10mL of concentrated hydrocholoric acid into a beaker.
B)Dip the wire loop in the acid to clean it.
C)Heat the wire loop in the outer edge of the bunsen burners flame, keep doing that till no color is in the flame.
4. A)Dip the clean wire loop into one of nitrate solutions.
B)Move the loop up and down in the outer edge of the flame.Record the color of the flame shown.
5. A)Clean the wire loop in the hydrochloric acid.
B)Repeat step 4 making sure you use all the solutions independently.
Friday, September 25, 2009
Flame Test Hypothesis
In this experiment the elements that are placed over the flame will either have a different colored flame or the flame will stay orange. The color of the flame of the element might change due to what element it is.
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