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Compare the flame test and solution reaction observations for the unknown to the observations for the known solution...
6. A fireworks display is based on the same principles as flame tests, only on a...
6. A fireworks display is based on the same principles as flame tests, only on a much larger scale. Based on your experimental observations in part III, which elements are suitable for the following for colors for fireworks? a. yellow-orange b. red-orange c. violet d. magenta e. bright red f. green
1. Refer to Data Table A.2 and state the solutions that produce reactions similar to (a)...
1. Refer to Data Table A.2 and state the solutions that produce reactions similar to (a) Li State the elements in this experiment that belong to: (a) Group IA/1 (b) Ba 2. (b) Group IIA/2 An unknown solution gives a brief green flame test. The unknown gives a white precipitate with ammonium carbonate, ammonium phosphate, and ammonium sulfate. The halide test produces a purple color in the upper hexane layer. Identify (a) the alkali or alkaline earth element, and (b)...
III. Flame and Precipitation Tests of Metals A. Metal Tested Flame Test Color Precipitation Results barium...
III. Flame and Precipitation Tests of Metals A. Metal Tested Flame Test Color Precipitation Results barium solution calcium solution copper solution lithium solution potassium solution sodium solution strontium solution B. Unknowns Unknown number (even number) Flame Test Color Precipitation Results Formula of unknown Name of unknown Unknown number (odd number) Flame Test Color Precipitation Results Formula of unknown Name of unknown
Unit 2, Lab 1: Flame Test Name: &
Unit 2, Lab 1: Flame Test Name: Date: Lab Results Record the results of your flame tests. Compounds Flame Color lithium strontium calcium magnesium zinc copper barium manganese lead bismuth arsenic potassium Conclusions Why do different elements produce distinct colors in the flame test? Make sure to include a discussion of electrons in your answer (3 sentences required). Explain a reason why a flame test would not match the expected colors listed in the background
c. The Lyman-a hydrogen solar emission line at 121.58 nm corresponds to an elec- tron dropping...
c. The Lyman-a hydrogen solar emission line at 121.58 nm corresponds to an elec- tron dropping from a higher energy level down to n = 1. Use the Rydberg equa- tion to identify the transition. to = 1 5. Colorful lights used in advertising are commonly referred to as "neon lights." If these lights act like large gas discharge tubes, do all "neon lights" contain neon? Explain. 6. A fireworks display is based on the same principles as flame tests,...
11. Chemical Reactions Metals as organized by their flame test colors. colorless violet blue green yellow...
11. Chemical Reactions Metals as organized by their flame test colors. colorless violet blue green yellow orange r ed 4.3: Halide tests. Describe any reactions observed. Halide solution Addine ANO Adding AgNO, and then dilute NH, Adding AgNO, and then concentrated NH, Naa cloudy Clear I unChansed NaBr cloudy clear unchansed Nal Klondy unchensed unchensed Clonely clear The balanced reaction of silver nitrate with NaCl. molecular equation complete ionic equation net ionic equation
Flame Tests of Metal Cations Experimental Data and Observations Solution LiCi Dominant Flame Color I Red...
Flame Tests of Metal Cations Experimental Data and Observations Solution LiCi Dominant Flame Color I Red I Congo - Yellow i Vice NaCl KCI uch. Bach Cach Wavelength (mm) 701 597 455 535 609 622 I Green Omne Red - Orange Data Analysis Using the wavelengths recorded above, calculate the corresponding frequencies and photon energies for the emitted radiation observed for each compound tested. Record the results of your calculations in the table below. Solution Wavelength (m) Frequency (s') Photon...
Post-Laboratory Assignment 1. Which end of the spectrum shows higher energy transitions? (Circle one) blue end...
Post-Laboratory Assignment 1. Which end of the spectrum shows higher energy transitions? (Circle one) blue end red end 2. As wavelength increases, energy increases decreases 3. As frequency increases, energy increases decreases 4. The intense Lyman-a hydrogen solar emission line at 121.58 nm is strongly absorbed by , in the stratosphere. This results in O dissociation and the ultimate formation of opone, O. to form the coone layer. a. Calculate the energy of one photon with a wavelength of 121.58...
POST-LABORATORY QUESTIONS (For full credit show your calculations). us T able enced color of ligh...
the
date is 4/09/19
POST-LABORATORY QUESTIONS (For full credit show your calculations). us T able enced color of light and the coresponding wavelength (om) associated with each cation Barium, Ba2 Copper, Cu2 Sodium, Na Calcium, Ca2 Potassium, K Strontium, Sr2 2. Calculate the energy associated with the light emitted by each of the K', Ca*2 and Li. Ca 2 Ba*2 s Flame Tests & Electron Configuration FLAME TESTS & ELECTRON CONFIGURATION INTRODUCTION AND BACKGROUND The chemistry of an element strongly...
I need help creating a flowchart on a unknown 89 Chart of Unknown Test and the...
I need help creating a flowchart on a unknown 89 Chart of Unknown Test and the Result #89 Name of Test What does it test? Positive result appears as: negative results appears as: Unknown #89 result: Gram Stain Reaction Cell envelope morphology Violet-blue Red Negative (pink) Cell morphology (shape: coccus, bacillus, or spirillum) Cell shape Bacillus (Rod shaped) Cell Arrangement Cell size or length Single Bacillus Pigment Cell envelope morphology Pink Oxygen Requirement If cell needs oxygen for respiration Growth...
6. A fireworks display is based on the same principles as flame tests, only on a much larger scale. Based on your experimental observations in part III, which elements are suitable for the following for colors for fireworks? a. yellow-orange b. red-orange c. violet d. magenta e. bright red f. green
1. Refer to Data Table A.2 and state the solutions that produce reactions similar to (a) Li State the elements in this experiment that belong to: (a) Group IA/1 (b) Ba 2. (b) Group IIA/2 An unknown solution gives a brief green flame test. The unknown gives a white precipitate with ammonium carbonate, ammonium phosphate, and ammonium sulfate. The halide test produces a purple color in the upper hexane layer. Identify (a) the alkali or alkaline earth element, and (b)...
III. Flame and Precipitation Tests of Metals A. Metal Tested Flame Test Color Precipitation Results barium solution calcium solution copper solution lithium solution potassium solution sodium solution strontium solution B. Unknowns Unknown number (even number) Flame Test Color Precipitation Results Formula of unknown Name of unknown Unknown number (odd number) Flame Test Color Precipitation Results Formula of unknown Name of unknown
c. The Lyman-a hydrogen solar emission line at 121.58 nm corresponds to an elec- tron dropping from a higher energy level down to n = 1. Use the Rydberg equa- tion to identify the transition. to = 1 5. Colorful lights used in advertising are commonly referred to as "neon lights." If these lights act like large gas discharge tubes, do all "neon lights" contain neon? Explain. 6. A fireworks display is based on the same principles as flame tests,...
11. Chemical Reactions Metals as organized by their flame test colors. colorless violet blue green yellow orange r ed 4.3: Halide tests. Describe any reactions observed. Halide solution Addine ANO Adding AgNO, and then dilute NH, Adding AgNO, and then concentrated NH, Naa cloudy Clear I unChansed NaBr cloudy clear unchansed Nal Klondy unchensed unchensed Clonely clear The balanced reaction of silver nitrate with NaCl. molecular equation complete ionic equation net ionic equation
Flame Tests of Metal Cations Experimental Data and Observations Solution LiCi Dominant Flame Color I Red I Congo - Yellow i Vice NaCl KCI uch. Bach Cach Wavelength (mm) 701 597 455 535 609 622 I Green Omne Red - Orange Data Analysis Using the wavelengths recorded above, calculate the corresponding frequencies and photon energies for the emitted radiation observed for each compound tested. Record the results of your calculations in the table below. Solution Wavelength (m) Frequency (s') Photon...
Post-Laboratory Assignment 1. Which end of the spectrum shows higher energy transitions? (Circle one) blue end red end 2. As wavelength increases, energy increases decreases 3. As frequency increases, energy increases decreases 4. The intense Lyman-a hydrogen solar emission line at 121.58 nm is strongly absorbed by , in the stratosphere. This results in O dissociation and the ultimate formation of opone, O. to form the coone layer. a. Calculate the energy of one photon with a wavelength of 121.58...
the
date is 4/09/19
POST-LABORATORY QUESTIONS (For full credit show your calculations). us T able enced color of light and the coresponding wavelength (om) associated with each cation Barium, Ba2 Copper, Cu2 Sodium, Na Calcium, Ca2 Potassium, K Strontium, Sr2 2. Calculate the energy associated with the light emitted by each of the K', Ca*2 and Li. Ca 2 Ba*2 s Flame Tests & Electron Configuration FLAME TESTS & ELECTRON CONFIGURATION INTRODUCTION AND BACKGROUND The chemistry of an element strongly...
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