Introduction to the Flame Test Lab: The Flame Test lab was an in-class lab where we tested chemicals in the flames to see the wide range of colors in the color spectrum.
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Flame Test Lab Essay Sample Abstract- In the flame test lab, the flame test was performed to excite the electrons in the samples and observe the color of the flame. The flame emits a color because each element has an exactly defined emission spectrum, which one can use to identify them.
The concentric circles in his model represent the energy levels. Electrons can jump from energy level to energy level and absorb or emit light energy when they jump from one energy level to another. The electrons then return to their ground state by emitting a photon of light.
The amount of energy in the photon determines its color; red for the lowest energy of visible light, increasing energy through the rainbow of orange, yellow, green, blue, indigo, and finally violet for the highest energy of visible light. Photons outside the visible spectrum may also be emitted, but cannot be seen.
One can view the emission spectrum of colors all at once with the naked eye. It will appear to be one color, which is carefully described. A flame test is a procedure used to test for the presence of certain metals in a chemical compounds.
When the compound was excited by heating it in a flame, the metal ions began to emit light. Due to the emission spectrum of the element, the compound turned the flame a certain color.
In this lab, the color of the flame test of many compounds was recorded by holding them over an ignited Bunsen burner. Procedure- To start, safety goggles were put on. Seven wooden splints that were soaked in distilled water were then placed into a ml beaker half-full with deionized water to continue soaking.
Each contained a scoop full of each metallic solid in the corresponding weighing dish. After this, the Bunsen burner was carefully lit.
The soaked end of one of the metallic splints was then dipped in one of the metallic salts. If any of the solid fell on the lab bench or Bunsen burner the test had to be repeated with the same splint and salt. The splint and match were thrown in the trash after this.
The observations for the flame color produced by the metallic salt were recorded in the data table.Other metal ions (such as Pb 2+, Cu 2+, Al3+ and Zn 2+) will test only weakly acidic (3.
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Safety test. Answer the following questions. When done, click on the submit button to view your results. Laboratory mixers allow for mixing of smaller quantities of material, typically up to gallons ( liters). A lab mixer also handles solutions with viscosities up to , cps, which is dependent on the torque, horsepower, and speed of the mixer.
Analytical chemistry studies and uses instruments and methods used to separate, identify, and quantify matter. In practice, separation, identification or quantification may constitute the entire analysis or be combined with another method. The flame test is used to visually determine the identity of an unknown metal or metalloid ion based on the characteristic color the salt turns the flame of a Bunsen burner.
The heat of the flame excites the electrons of the metals ions, causing them to emit visible light. Every element has a signature emission spectrum that can be used to differentiate between one element and another.