1 / 8

Lab 2—Flame Test

Lab 2—Flame Test. Introductions Purpose Materials Cautionary notes Experimental Procedures or methods Questions Conclusions Conclusion statement that ties everything together. 1. 4. 3. 2. Solution Grid. Ca +2. Na +. K +. Li +. A. B. Ba +2. Cu +2. Sr +2. HCl. C. #1. #2.

eichelberger
Download Presentation

Lab 2—Flame Test

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Lab 2—Flame Test • Introductions • Purpose • Materials • Cautionary notes • Experimental Procedures or methods • Questions • Conclusions • Conclusion statement that ties everything together.

  2. 1 4 3 2 Solution Grid Ca+2 Na+ K+ Li+ A B Ba+2 Cu+2 Sr+2 HCl C #1 #2

  3. Solutions A1 NaNO3 B1 SrNO3 A2 KNO3 B2 BaNO3 A3 LiNO3 B3 CuSO4 A4 CaNO3 C3 Unknown #1 C4 Unknown #2

  4. Data Table • Metallic Ion Data • Na+ • K • Li+ • Ca+2 • Sr+2 • Ba+2 • Cu+2 • Unknown #1 • Unknown #2

  5. Data standards • Metallic Ion Data • Na+ Bright Orange • K+ Violet- Purple/pink • Li+ Purple to red orange • Ca+2 Yellowish orange to red orange • Sr+2 Red/Crimson to orange to yellow • Ba+2 Green/Yellowish • Cu+2 (non halide) Blue/green to orange • Unknown #1 • Unknown #2

  6. Questions • 1. Inaccuracies maybe involved in using the flame test for identification purposes? • 2. Which pairs of ions produce similar colors in the flame test? • 3. Explain how the colors observed in the flame tests are produced? What is happening to the element? • 4. What colors did the unknowns produce in the flame? What are the unknowns? • 5. Suppose you were a firefighter and you were called to a chemical plant fire. Upon arrival you see a bright violet/purple flame. What chemical (metal) would that tell you is burning? • 6. If you were watching a firework burn with a red color, what chemicals are used in the fireworks? • 7. If you observed another firework burn which started yellow and then turned blue, which two chemicals were used?

  7. Glossary Terms • A). Ground State • B). Excited State Conclusions A). Write conclusions using CER format B). Make sure to have a conclusion statement at the end that ties everything together and tells what you determined your unknowns were based on your observations.

More Related