Lab Report: Flame Test

Purpose: To determine the colors of the Atomic Emission Spectra of some(prenominal) silver ions. Materials: Safety glasses 10 running cope with tubes Test tube rack Paper Pencil 50 mL beaker Bunsen throw a fiter Nichrome electrify barium nitrate shit Nitrate atomic number 38 Nitrate nuclear number 3 Nitrate Potassium Nitrate atomic number 11 Chloride Calcium Nitrate mystical terminations A,B, & C Hydrochloric window dose Wash bottle (with distilled water) Procedure: 1. Label the test tubes with the name of the solutions and unknowns. 2. Place about 5 mL of separately solution into sever tout ensembley test tube, and 10 mL of Hydrochloric caustic into the 50 mL beaker. 3. Clean the Nichrome wire before on an individual basis test. To do this, rinse it with distilled water from the wash bottle, dip it into the Hydrochloric Acid, and get off it in the trim backer flame for a few moments. 4. Take commercial enterprise of the color of the flame when the w ire is clean. This is the color you should see posterior on each cleaning. 5. Once the wire is clean, dip it into superstar of the solutions, family the wire in the flame, and observe the color of the flame. 6. Clean the Nichrome wire as directed in step 3, then take a hop step 5 until all of the solutions have been tested. Record your observations as you go. 7. Repeat steps 3 through 5 for each of the unknown solutions and try to determine what the solution may be based on your observations of the known substances.

Data and Observations: Solution          mask of Flame Barium Nitrate          discolor/yel low to chromatic Copper Nitrate   Â!  Â Â Â Â Â blue/green to orange atomic number 3 Nitrate          regal/ ruby- bolshy to orange Potassium Nitrate         pink/purple sodium Chloride          ingenious orange Calcium Nitrate         red/orange Strontium Nitrate         red to orange to yellow Unknown A         red/orange - Calcium Nitrate Unknown B         pink/purple - Potassium Nitrate Unknown C         bright orange - Sodium Chloride The alloylic ions that argon hold in the solutions are Barium Nitrate, Copper Nitrate, Strontium Nitrate, lithium Nitrate, Potassium Nitrate, Sodium Nitrate, and Calcium Nitrate. Calcium Nitrate is devote in Unknown A. Potassium Nitrate is present in Unknown B. Sodium Chloride is present in Unknown C. When the ions burn it is a chemical change. The colors we saw and the lines of the electromagnetic spectrum are all colors of the rainbow. Calculations: There were no calculat ions made in this lab. Conclusion: Barium Nitrate ruin green/yellow. Copper Nitrate ruin blue/green. Lithium Nitrate burn purple/red. Potassium Nitrate burns pink/purple. Sodium Chloride burns bright orange. Calcium Nitrate burns red/orange. Strontium Nitrate burns red, orange, and yellow. If other compounds containing the same metal ions were flame tested, I think that they would burn the same colors, unless conflate with others. If you want to get a across-the-board essay, order it on our website: BestEssayCheap.com

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